diff --git a/dist/vue-chartjs.js b/dist/vue-chartjs.js
index cf5ab4bd..d8e07f52 100644
--- a/dist/vue-chartjs.js
+++ b/dist/vue-chartjs.js
@@ -1,6 +1,6 @@
 /*!
- * vue-chartjs v3.0.2
- * (c) 2017 Jakub Juszczak <jakub@posteo.de>
+ * vue-chartjs v3.1.0
+ * (c) 2018 Jakub Juszczak <jakub@posteo.de>
  * http://vue-chartjs.org
  */
 (function webpackUniversalModuleDefinition(root, factory) {
@@ -12,7 +12,7 @@
 		exports["VueChartJs"] = factory(require("chart.js"));
 	else
 		root["VueChartJs"] = factory(root["Chart"]);
-})(this, function(__WEBPACK_EXTERNAL_MODULE_0__) {
+})(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE_0__) {
 return /******/ (function(modules) { // webpackBootstrap
 /******/ 	// The module cache
 /******/ 	var installedModules = {};
@@ -95,18 +95,8 @@ Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
 var external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js__ = __webpack_require__(0);
 var external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default = /*#__PURE__*/__webpack_require__.n(external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js__);
 
-// EXTERNAL MODULE: ./node_modules/lodash.merge/index.js
-var lodash_merge = __webpack_require__(2);
-var lodash_merge_default = /*#__PURE__*/__webpack_require__.n(lodash_merge);
-
-// CONCATENATED MODULE: ./src/helpers/options.js
-
-function mergeOptions(obj, src) {
-  return lodash_merge_default()(obj, src);
-}
 // CONCATENATED MODULE: ./src/BaseCharts/Bar.js
 
-
 /* harmony default export */ var Bar = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -140,44 +130,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {
-        scales: {
-          yAxes: [{
-            ticks: {
-              beginAtZero: true
-            },
-            gridLines: {
-              display: false
-            }
-          }],
-          xAxes: [{
-            gridLines: {
-              display: false
-            },
-            categoryPercentage: 0.5,
-            barPercentage: 0.2
-          }]
-        }
-      },
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'bar',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -189,7 +165,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/HorizontalBar.js
 
-
 /* harmony default export */ var HorizontalBar = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -223,44 +198,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {
-        scales: {
-          yAxes: [{
-            ticks: {
-              beginAtZero: true
-            },
-            gridLines: {
-              display: false
-            }
-          }],
-          xAxes: [{
-            gridLines: {
-              display: false
-            },
-            categoryPercentage: 0.5,
-            barPercentage: 0.2
-          }]
-        }
-      },
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
-    renderChart: function renderChart(data, options, type) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
+    renderChart: function renderChart(data, options) {
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'horizontalBar',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -272,7 +233,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Doughnut.js
 
-
 /* harmony default export */ var Doughnut = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -306,26 +266,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {},
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'doughnut',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -337,7 +301,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Line.js
 
-
 /* harmony default export */ var Line = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -371,42 +334,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {
-        scales: {
-          yAxes: [{
-            ticks: {
-              beginAtZero: true
-            },
-            gridLines: {
-              display: false
-            }
-          }],
-          xAxes: [{
-            gridLines: {
-              display: false
-            }
-          }]
-        }
-      },
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'line',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -418,7 +369,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Pie.js
 
-
 /* harmony default export */ var Pie = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -452,26 +402,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {},
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'pie',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -483,7 +437,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/PolarArea.js
 
-
 /* harmony default export */ var PolarArea = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -517,26 +470,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {},
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'polarArea',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -548,7 +505,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Radar.js
 
-
 /* harmony default export */ var Radar = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -582,26 +538,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {},
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'radar',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -613,7 +573,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Bubble.js
 
-
 /* harmony default export */ var Bubble = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -647,44 +606,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {
-        scales: {
-          yAxes: [{
-            ticks: {
-              beginAtZero: true
-            },
-            gridLines: {
-              display: false
-            }
-          }],
-          xAxes: [{
-            gridLines: {
-              display: false
-            },
-            categoryPercentage: 0.5,
-            barPercentage: 0.2
-          }]
-        }
-      },
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'bubble',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -696,7 +641,6 @@ function mergeOptions(obj, src) {
 });
 // CONCATENATED MODULE: ./src/BaseCharts/Scatter.js
 
-
 /* harmony default export */ var Scatter = ({
   render: function render(createElement) {
     return createElement('div', {
@@ -730,33 +674,30 @@ function mergeOptions(obj, src) {
     },
     styles: {
       type: Object
+    },
+    plugins: {
+      type: Array,
+      default: function _default() {
+        return [];
+      }
     }
   },
   data: function data() {
     return {
       _chart: null,
-      defaultOptions: {
-        scales: {
-          xAxes: [{
-            type: 'linear',
-            position: 'bottom'
-          }]
-        }
-      },
-      plugins: []
+      _plugins: this.plugins
     };
   },
   methods: {
     addPlugin: function addPlugin(plugin) {
-      this.plugins.push(plugin);
+      this.$data._plugins.push(plugin);
     },
     renderChart: function renderChart(data, options) {
-      var chartOptions = mergeOptions(this.defaultOptions, options);
       this.$data._chart = new external___root___Chart___commonjs___chart_js___commonjs2___chart_js___amd___chart_js___default.a(this.$refs.canvas.getContext('2d'), {
         type: 'scatter',
         data: data,
-        options: chartOptions,
-        plugins: this.plugins
+        options: options,
+        plugins: this.$data._plugins
       });
     }
   },
@@ -767,11 +708,11 @@ function mergeOptions(obj, src) {
   }
 });
 // EXTERNAL MODULE: ./src/mixins/reactiveData.js
-var reactiveData = __webpack_require__(5);
+var reactiveData = __webpack_require__(2);
 var reactiveData_default = /*#__PURE__*/__webpack_require__.n(reactiveData);
 
 // EXTERNAL MODULE: ./src/mixins/reactiveProp.js
-var reactiveProp = __webpack_require__(6);
+var reactiveProp = __webpack_require__(3);
 var reactiveProp_default = /*#__PURE__*/__webpack_require__.n(reactiveProp);
 
 // CONCATENATED MODULE: ./src/mixins/index.js
@@ -782,7 +723,7 @@ var reactiveProp_default = /*#__PURE__*/__webpack_require__.n(reactiveProp);
   reactiveProp: reactiveProp_default.a
 });
 // EXTERNAL MODULE: ./package.json
-var package_0 = __webpack_require__(7);
+var package_0 = __webpack_require__(4);
 var package_default = /*#__PURE__*/__webpack_require__.n(package_0);
 
 // CONCATENATED MODULE: ./src/index.js
@@ -821,2280 +762,11 @@ var VueCharts = {
   Scatter: Scatter,
   mixins: mixins
 };
-/* harmony default export */ var src_0 = __webpack_exports__["default"] = (VueCharts);
+/* harmony default export */ var src = __webpack_exports__["default"] = (VueCharts);
 
 
 /***/ }),
 /* 2 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* WEBPACK VAR INJECTION */(function(global, module) {/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
-/** Used as the size to enable large array optimizations. */
-var LARGE_ARRAY_SIZE = 200;
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    arrayTag = '[object Array]',
-    boolTag = '[object Boolean]',
-    dateTag = '[object Date]',
-    errorTag = '[object Error]',
-    funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]',
-    mapTag = '[object Map]',
-    numberTag = '[object Number]',
-    objectTag = '[object Object]',
-    promiseTag = '[object Promise]',
-    regexpTag = '[object RegExp]',
-    setTag = '[object Set]',
-    stringTag = '[object String]',
-    symbolTag = '[object Symbol]',
-    weakMapTag = '[object WeakMap]';
-
-var arrayBufferTag = '[object ArrayBuffer]',
-    dataViewTag = '[object DataView]',
-    float32Tag = '[object Float32Array]',
-    float64Tag = '[object Float64Array]',
-    int8Tag = '[object Int8Array]',
-    int16Tag = '[object Int16Array]',
-    int32Tag = '[object Int32Array]',
-    uint8Tag = '[object Uint8Array]',
-    uint8ClampedTag = '[object Uint8ClampedArray]',
-    uint16Tag = '[object Uint16Array]',
-    uint32Tag = '[object Uint32Array]';
-
-/**
- * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
- */
-var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
-
-/** Used to match `RegExp` flags from their coerced string values. */
-var reFlags = /\w*$/;
-
-/** Used to detect host constructors (Safari). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-/** Used to detect unsigned integer values. */
-var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-/** Used to identify `toStringTag` values of typed arrays. */
-var typedArrayTags = {};
-typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
-typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
-typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
-typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
-typedArrayTags[uint32Tag] = true;
-typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
-typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
-typedArrayTags[errorTag] = typedArrayTags[funcTag] =
-typedArrayTags[mapTag] = typedArrayTags[numberTag] =
-typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
-typedArrayTags[setTag] = typedArrayTags[stringTag] =
-typedArrayTags[weakMapTag] = false;
-
-/** Used to identify `toStringTag` values supported by `_.clone`. */
-var cloneableTags = {};
-cloneableTags[argsTag] = cloneableTags[arrayTag] =
-cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
-cloneableTags[boolTag] = cloneableTags[dateTag] =
-cloneableTags[float32Tag] = cloneableTags[float64Tag] =
-cloneableTags[int8Tag] = cloneableTags[int16Tag] =
-cloneableTags[int32Tag] = cloneableTags[mapTag] =
-cloneableTags[numberTag] = cloneableTags[objectTag] =
-cloneableTags[regexpTag] = cloneableTags[setTag] =
-cloneableTags[stringTag] = cloneableTags[symbolTag] =
-cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
-cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
-cloneableTags[errorTag] = cloneableTags[funcTag] =
-cloneableTags[weakMapTag] = false;
-
-/** Detect free variable `global` from Node.js. */
-var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
-
-/** Detect free variable `self`. */
-var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-/** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
-
-/** Detect free variable `exports`. */
-var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
-
-/** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
-
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = freeModule && freeModule.exports === freeExports;
-
-/** Detect free variable `process` from Node.js. */
-var freeProcess = moduleExports && freeGlobal.process;
-
-/** Used to access faster Node.js helpers. */
-var nodeUtil = (function() {
-  try {
-    return freeProcess && freeProcess.binding('util');
-  } catch (e) {}
-}());
-
-/* Node.js helper references. */
-var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
-
-/**
- * Adds the key-value `pair` to `map`.
- *
- * @private
- * @param {Object} map The map to modify.
- * @param {Array} pair The key-value pair to add.
- * @returns {Object} Returns `map`.
- */
-function addMapEntry(map, pair) {
-  // Don't return `map.set` because it's not chainable in IE 11.
-  map.set(pair[0], pair[1]);
-  return map;
-}
-
-/**
- * Adds `value` to `set`.
- *
- * @private
- * @param {Object} set The set to modify.
- * @param {*} value The value to add.
- * @returns {Object} Returns `set`.
- */
-function addSetEntry(set, value) {
-  // Don't return `set.add` because it's not chainable in IE 11.
-  set.add(value);
-  return set;
-}
-
-/**
- * A faster alternative to `Function#apply`, this function invokes `func`
- * with the `this` binding of `thisArg` and the arguments of `args`.
- *
- * @private
- * @param {Function} func The function to invoke.
- * @param {*} thisArg The `this` binding of `func`.
- * @param {Array} args The arguments to invoke `func` with.
- * @returns {*} Returns the result of `func`.
- */
-function apply(func, thisArg, args) {
-  switch (args.length) {
-    case 0: return func.call(thisArg);
-    case 1: return func.call(thisArg, args[0]);
-    case 2: return func.call(thisArg, args[0], args[1]);
-    case 3: return func.call(thisArg, args[0], args[1], args[2]);
-  }
-  return func.apply(thisArg, args);
-}
-
-/**
- * A specialized version of `_.forEach` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns `array`.
- */
-function arrayEach(array, iteratee) {
-  var index = -1,
-      length = array ? array.length : 0;
-
-  while (++index < length) {
-    if (iteratee(array[index], index, array) === false) {
-      break;
-    }
-  }
-  return array;
-}
-
-/**
- * Appends the elements of `values` to `array`.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {Array} values The values to append.
- * @returns {Array} Returns `array`.
- */
-function arrayPush(array, values) {
-  var index = -1,
-      length = values.length,
-      offset = array.length;
-
-  while (++index < length) {
-    array[offset + index] = values[index];
-  }
-  return array;
-}
-
-/**
- * A specialized version of `_.reduce` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {boolean} [initAccum] Specify using the first element of `array` as
- *  the initial value.
- * @returns {*} Returns the accumulated value.
- */
-function arrayReduce(array, iteratee, accumulator, initAccum) {
-  var index = -1,
-      length = array ? array.length : 0;
-
-  if (initAccum && length) {
-    accumulator = array[++index];
-  }
-  while (++index < length) {
-    accumulator = iteratee(accumulator, array[index], index, array);
-  }
-  return accumulator;
-}
-
-/**
- * The base implementation of `_.times` without support for iteratee shorthands
- * or max array length checks.
- *
- * @private
- * @param {number} n The number of times to invoke `iteratee`.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the array of results.
- */
-function baseTimes(n, iteratee) {
-  var index = -1,
-      result = Array(n);
-
-  while (++index < n) {
-    result[index] = iteratee(index);
-  }
-  return result;
-}
-
-/**
- * The base implementation of `_.unary` without support for storing metadata.
- *
- * @private
- * @param {Function} func The function to cap arguments for.
- * @returns {Function} Returns the new capped function.
- */
-function baseUnary(func) {
-  return function(value) {
-    return func(value);
-  };
-}
-
-/**
- * Gets the value at `key` of `object`.
- *
- * @private
- * @param {Object} [object] The object to query.
- * @param {string} key The key of the property to get.
- * @returns {*} Returns the property value.
- */
-function getValue(object, key) {
-  return object == null ? undefined : object[key];
-}
-
-/**
- * Checks if `value` is a host object in IE < 9.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
- */
-function isHostObject(value) {
-  // Many host objects are `Object` objects that can coerce to strings
-  // despite having improperly defined `toString` methods.
-  var result = false;
-  if (value != null && typeof value.toString != 'function') {
-    try {
-      result = !!(value + '');
-    } catch (e) {}
-  }
-  return result;
-}
-
-/**
- * Converts `map` to its key-value pairs.
- *
- * @private
- * @param {Object} map The map to convert.
- * @returns {Array} Returns the key-value pairs.
- */
-function mapToArray(map) {
-  var index = -1,
-      result = Array(map.size);
-
-  map.forEach(function(value, key) {
-    result[++index] = [key, value];
-  });
-  return result;
-}
-
-/**
- * Creates a unary function that invokes `func` with its argument transformed.
- *
- * @private
- * @param {Function} func The function to wrap.
- * @param {Function} transform The argument transform.
- * @returns {Function} Returns the new function.
- */
-function overArg(func, transform) {
-  return function(arg) {
-    return func(transform(arg));
-  };
-}
-
-/**
- * Converts `set` to an array of its values.
- *
- * @private
- * @param {Object} set The set to convert.
- * @returns {Array} Returns the values.
- */
-function setToArray(set) {
-  var index = -1,
-      result = Array(set.size);
-
-  set.forEach(function(value) {
-    result[++index] = value;
-  });
-  return result;
-}
-
-/** Used for built-in method references. */
-var arrayProto = Array.prototype,
-    funcProto = Function.prototype,
-    objectProto = Object.prototype;
-
-/** Used to detect overreaching core-js shims. */
-var coreJsData = root['__core-js_shared__'];
-
-/** Used to detect methods masquerading as native. */
-var maskSrcKey = (function() {
-  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
-  return uid ? ('Symbol(src)_1.' + uid) : '';
-}());
-
-/** Used to resolve the decompiled source of functions. */
-var funcToString = funcProto.toString;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/** Used to infer the `Object` constructor. */
-var objectCtorString = funcToString.call(Object);
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
-
-/** Built-in value references. */
-var Buffer = moduleExports ? root.Buffer : undefined,
-    Symbol = root.Symbol,
-    Uint8Array = root.Uint8Array,
-    getPrototype = overArg(Object.getPrototypeOf, Object),
-    objectCreate = Object.create,
-    propertyIsEnumerable = objectProto.propertyIsEnumerable,
-    splice = arrayProto.splice;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeGetSymbols = Object.getOwnPropertySymbols,
-    nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
-    nativeKeys = overArg(Object.keys, Object),
-    nativeMax = Math.max;
-
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView'),
-    Map = getNative(root, 'Map'),
-    Promise = getNative(root, 'Promise'),
-    Set = getNative(root, 'Set'),
-    WeakMap = getNative(root, 'WeakMap'),
-    nativeCreate = getNative(Object, 'create');
-
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
-    mapCtorString = toSource(Map),
-    promiseCtorString = toSource(Promise),
-    setCtorString = toSource(Set),
-    weakMapCtorString = toSource(WeakMap);
-
-/** Used to convert symbols to primitives and strings. */
-var symbolProto = Symbol ? Symbol.prototype : undefined,
-    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
-
-/**
- * Creates a hash object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Hash(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the hash.
- *
- * @private
- * @name clear
- * @memberOf Hash
- */
-function hashClear() {
-  this.__data__ = nativeCreate ? nativeCreate(null) : {};
-}
-
-/**
- * Removes `key` and its value from the hash.
- *
- * @private
- * @name delete
- * @memberOf Hash
- * @param {Object} hash The hash to modify.
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function hashDelete(key) {
-  return this.has(key) && delete this.__data__[key];
-}
-
-/**
- * Gets the hash value for `key`.
- *
- * @private
- * @name get
- * @memberOf Hash
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function hashGet(key) {
-  var data = this.__data__;
-  if (nativeCreate) {
-    var result = data[key];
-    return result === HASH_UNDEFINED ? undefined : result;
-  }
-  return hasOwnProperty.call(data, key) ? data[key] : undefined;
-}
-
-/**
- * Checks if a hash value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Hash
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function hashHas(key) {
-  var data = this.__data__;
-  return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
-}
-
-/**
- * Sets the hash `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Hash
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the hash instance.
- */
-function hashSet(key, value) {
-  var data = this.__data__;
-  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
-  return this;
-}
-
-// Add methods to `Hash`.
-Hash.prototype.clear = hashClear;
-Hash.prototype['delete'] = hashDelete;
-Hash.prototype.get = hashGet;
-Hash.prototype.has = hashHas;
-Hash.prototype.set = hashSet;
-
-/**
- * Creates an list cache object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function ListCache(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the list cache.
- *
- * @private
- * @name clear
- * @memberOf ListCache
- */
-function listCacheClear() {
-  this.__data__ = [];
-}
-
-/**
- * Removes `key` and its value from the list cache.
- *
- * @private
- * @name delete
- * @memberOf ListCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function listCacheDelete(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    return false;
-  }
-  var lastIndex = data.length - 1;
-  if (index == lastIndex) {
-    data.pop();
-  } else {
-    splice.call(data, index, 1);
-  }
-  return true;
-}
-
-/**
- * Gets the list cache value for `key`.
- *
- * @private
- * @name get
- * @memberOf ListCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function listCacheGet(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  return index < 0 ? undefined : data[index][1];
-}
-
-/**
- * Checks if a list cache value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf ListCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function listCacheHas(key) {
-  return assocIndexOf(this.__data__, key) > -1;
-}
-
-/**
- * Sets the list cache `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf ListCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the list cache instance.
- */
-function listCacheSet(key, value) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    data.push([key, value]);
-  } else {
-    data[index][1] = value;
-  }
-  return this;
-}
-
-// Add methods to `ListCache`.
-ListCache.prototype.clear = listCacheClear;
-ListCache.prototype['delete'] = listCacheDelete;
-ListCache.prototype.get = listCacheGet;
-ListCache.prototype.has = listCacheHas;
-ListCache.prototype.set = listCacheSet;
-
-/**
- * Creates a map cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function MapCache(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the map.
- *
- * @private
- * @name clear
- * @memberOf MapCache
- */
-function mapCacheClear() {
-  this.__data__ = {
-    'hash': new Hash,
-    'map': new (Map || ListCache),
-    'string': new Hash
-  };
-}
-
-/**
- * Removes `key` and its value from the map.
- *
- * @private
- * @name delete
- * @memberOf MapCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function mapCacheDelete(key) {
-  return getMapData(this, key)['delete'](key);
-}
-
-/**
- * Gets the map value for `key`.
- *
- * @private
- * @name get
- * @memberOf MapCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function mapCacheGet(key) {
-  return getMapData(this, key).get(key);
-}
-
-/**
- * Checks if a map value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf MapCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function mapCacheHas(key) {
-  return getMapData(this, key).has(key);
-}
-
-/**
- * Sets the map `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf MapCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the map cache instance.
- */
-function mapCacheSet(key, value) {
-  getMapData(this, key).set(key, value);
-  return this;
-}
-
-// Add methods to `MapCache`.
-MapCache.prototype.clear = mapCacheClear;
-MapCache.prototype['delete'] = mapCacheDelete;
-MapCache.prototype.get = mapCacheGet;
-MapCache.prototype.has = mapCacheHas;
-MapCache.prototype.set = mapCacheSet;
-
-/**
- * Creates a stack cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Stack(entries) {
-  this.__data__ = new ListCache(entries);
-}
-
-/**
- * Removes all key-value entries from the stack.
- *
- * @private
- * @name clear
- * @memberOf Stack
- */
-function stackClear() {
-  this.__data__ = new ListCache;
-}
-
-/**
- * Removes `key` and its value from the stack.
- *
- * @private
- * @name delete
- * @memberOf Stack
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function stackDelete(key) {
-  return this.__data__['delete'](key);
-}
-
-/**
- * Gets the stack value for `key`.
- *
- * @private
- * @name get
- * @memberOf Stack
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function stackGet(key) {
-  return this.__data__.get(key);
-}
-
-/**
- * Checks if a stack value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Stack
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function stackHas(key) {
-  return this.__data__.has(key);
-}
-
-/**
- * Sets the stack `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Stack
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the stack cache instance.
- */
-function stackSet(key, value) {
-  var cache = this.__data__;
-  if (cache instanceof ListCache) {
-    var pairs = cache.__data__;
-    if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
-      pairs.push([key, value]);
-      return this;
-    }
-    cache = this.__data__ = new MapCache(pairs);
-  }
-  cache.set(key, value);
-  return this;
-}
-
-// Add methods to `Stack`.
-Stack.prototype.clear = stackClear;
-Stack.prototype['delete'] = stackDelete;
-Stack.prototype.get = stackGet;
-Stack.prototype.has = stackHas;
-Stack.prototype.set = stackSet;
-
-/**
- * Creates an array of the enumerable property names of the array-like `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @param {boolean} inherited Specify returning inherited property names.
- * @returns {Array} Returns the array of property names.
- */
-function arrayLikeKeys(value, inherited) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  // Safari 9 makes `arguments.length` enumerable in strict mode.
-  var result = (isArray(value) || isArguments(value))
-    ? baseTimes(value.length, String)
-    : [];
-
-  var length = result.length,
-      skipIndexes = !!length;
-
-  for (var key in value) {
-    if ((inherited || hasOwnProperty.call(value, key)) &&
-        !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * This function is like `assignValue` except that it doesn't assign
- * `undefined` values.
- *
- * @private
- * @param {Object} object The object to modify.
- * @param {string} key The key of the property to assign.
- * @param {*} value The value to assign.
- */
-function assignMergeValue(object, key, value) {
-  if ((value !== undefined && !eq(object[key], value)) ||
-      (typeof key == 'number' && value === undefined && !(key in object))) {
-    object[key] = value;
-  }
-}
-
-/**
- * Assigns `value` to `key` of `object` if the existing value is not equivalent
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @private
- * @param {Object} object The object to modify.
- * @param {string} key The key of the property to assign.
- * @param {*} value The value to assign.
- */
-function assignValue(object, key, value) {
-  var objValue = object[key];
-  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
-      (value === undefined && !(key in object))) {
-    object[key] = value;
-  }
-}
-
-/**
- * Gets the index at which the `key` is found in `array` of key-value pairs.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {*} key The key to search for.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
-function assocIndexOf(array, key) {
-  var length = array.length;
-  while (length--) {
-    if (eq(array[length][0], key)) {
-      return length;
-    }
-  }
-  return -1;
-}
-
-/**
- * The base implementation of `_.assign` without support for multiple sources
- * or `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @returns {Object} Returns `object`.
- */
-function baseAssign(object, source) {
-  return object && copyObject(source, keys(source), object);
-}
-
-/**
- * The base implementation of `_.clone` and `_.cloneDeep` which tracks
- * traversed objects.
- *
- * @private
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @param {boolean} [isFull] Specify a clone including symbols.
- * @param {Function} [customizer] The function to customize cloning.
- * @param {string} [key] The key of `value`.
- * @param {Object} [object] The parent object of `value`.
- * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
- * @returns {*} Returns the cloned value.
- */
-function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
-  var result;
-  if (customizer) {
-    result = object ? customizer(value, key, object, stack) : customizer(value);
-  }
-  if (result !== undefined) {
-    return result;
-  }
-  if (!isObject(value)) {
-    return value;
-  }
-  var isArr = isArray(value);
-  if (isArr) {
-    result = initCloneArray(value);
-    if (!isDeep) {
-      return copyArray(value, result);
-    }
-  } else {
-    var tag = getTag(value),
-        isFunc = tag == funcTag || tag == genTag;
-
-    if (isBuffer(value)) {
-      return cloneBuffer(value, isDeep);
-    }
-    if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
-      if (isHostObject(value)) {
-        return object ? value : {};
-      }
-      result = initCloneObject(isFunc ? {} : value);
-      if (!isDeep) {
-        return copySymbols(value, baseAssign(result, value));
-      }
-    } else {
-      if (!cloneableTags[tag]) {
-        return object ? value : {};
-      }
-      result = initCloneByTag(value, tag, baseClone, isDeep);
-    }
-  }
-  // Check for circular references and return its corresponding clone.
-  stack || (stack = new Stack);
-  var stacked = stack.get(value);
-  if (stacked) {
-    return stacked;
-  }
-  stack.set(value, result);
-
-  if (!isArr) {
-    var props = isFull ? getAllKeys(value) : keys(value);
-  }
-  arrayEach(props || value, function(subValue, key) {
-    if (props) {
-      key = subValue;
-      subValue = value[key];
-    }
-    // Recursively populate clone (susceptible to call stack limits).
-    assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
-  });
-  return result;
-}
-
-/**
- * The base implementation of `_.create` without support for assigning
- * properties to the created object.
- *
- * @private
- * @param {Object} prototype The object to inherit from.
- * @returns {Object} Returns the new object.
- */
-function baseCreate(proto) {
-  return isObject(proto) ? objectCreate(proto) : {};
-}
-
-/**
- * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
- * `keysFunc` and `symbolsFunc` to get the enumerable property names and
- * symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @param {Function} symbolsFunc The function to get the symbols of `object`.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function baseGetAllKeys(object, keysFunc, symbolsFunc) {
-  var result = keysFunc(object);
-  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-}
-
-/**
- * The base implementation of `getTag`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-function baseGetTag(value) {
-  return objectToString.call(value);
-}
-
-/**
- * The base implementation of `_.isNative` without bad shim checks.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function,
- *  else `false`.
- */
-function baseIsNative(value) {
-  if (!isObject(value) || isMasked(value)) {
-    return false;
-  }
-  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
-  return pattern.test(toSource(value));
-}
-
-/**
- * The base implementation of `_.isTypedArray` without Node.js optimizations.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
- */
-function baseIsTypedArray(value) {
-  return isObjectLike(value) &&
-    isLength(value.length) && !!typedArrayTags[objectToString.call(value)];
-}
-
-/**
- * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function baseKeys(object) {
-  if (!isPrototype(object)) {
-    return nativeKeys(object);
-  }
-  var result = [];
-  for (var key in Object(object)) {
-    if (hasOwnProperty.call(object, key) && key != 'constructor') {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function baseKeysIn(object) {
-  if (!isObject(object)) {
-    return nativeKeysIn(object);
-  }
-  var isProto = isPrototype(object),
-      result = [];
-
-  for (var key in object) {
-    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * The base implementation of `_.merge` without support for multiple sources.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {number} srcIndex The index of `source`.
- * @param {Function} [customizer] The function to customize merged values.
- * @param {Object} [stack] Tracks traversed source values and their merged
- *  counterparts.
- */
-function baseMerge(object, source, srcIndex, customizer, stack) {
-  if (object === source) {
-    return;
-  }
-  if (!(isArray(source) || isTypedArray(source))) {
-    var props = baseKeysIn(source);
-  }
-  arrayEach(props || source, function(srcValue, key) {
-    if (props) {
-      key = srcValue;
-      srcValue = source[key];
-    }
-    if (isObject(srcValue)) {
-      stack || (stack = new Stack);
-      baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
-    }
-    else {
-      var newValue = customizer
-        ? customizer(object[key], srcValue, (key + ''), object, source, stack)
-        : undefined;
-
-      if (newValue === undefined) {
-        newValue = srcValue;
-      }
-      assignMergeValue(object, key, newValue);
-    }
-  });
-}
-
-/**
- * A specialized version of `baseMerge` for arrays and objects which performs
- * deep merges and tracks traversed objects enabling objects with circular
- * references to be merged.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {string} key The key of the value to merge.
- * @param {number} srcIndex The index of `source`.
- * @param {Function} mergeFunc The function to merge values.
- * @param {Function} [customizer] The function to customize assigned values.
- * @param {Object} [stack] Tracks traversed source values and their merged
- *  counterparts.
- */
-function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
-  var objValue = object[key],
-      srcValue = source[key],
-      stacked = stack.get(srcValue);
-
-  if (stacked) {
-    assignMergeValue(object, key, stacked);
-    return;
-  }
-  var newValue = customizer
-    ? customizer(objValue, srcValue, (key + ''), object, source, stack)
-    : undefined;
-
-  var isCommon = newValue === undefined;
-
-  if (isCommon) {
-    newValue = srcValue;
-    if (isArray(srcValue) || isTypedArray(srcValue)) {
-      if (isArray(objValue)) {
-        newValue = objValue;
-      }
-      else if (isArrayLikeObject(objValue)) {
-        newValue = copyArray(objValue);
-      }
-      else {
-        isCommon = false;
-        newValue = baseClone(srcValue, true);
-      }
-    }
-    else if (isPlainObject(srcValue) || isArguments(srcValue)) {
-      if (isArguments(objValue)) {
-        newValue = toPlainObject(objValue);
-      }
-      else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
-        isCommon = false;
-        newValue = baseClone(srcValue, true);
-      }
-      else {
-        newValue = objValue;
-      }
-    }
-    else {
-      isCommon = false;
-    }
-  }
-  if (isCommon) {
-    // Recursively merge objects and arrays (susceptible to call stack limits).
-    stack.set(srcValue, newValue);
-    mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
-    stack['delete'](srcValue);
-  }
-  assignMergeValue(object, key, newValue);
-}
-
-/**
- * The base implementation of `_.rest` which doesn't validate or coerce arguments.
- *
- * @private
- * @param {Function} func The function to apply a rest parameter to.
- * @param {number} [start=func.length-1] The start position of the rest parameter.
- * @returns {Function} Returns the new function.
- */
-function baseRest(func, start) {
-  start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
-  return function() {
-    var args = arguments,
-        index = -1,
-        length = nativeMax(args.length - start, 0),
-        array = Array(length);
-
-    while (++index < length) {
-      array[index] = args[start + index];
-    }
-    index = -1;
-    var otherArgs = Array(start + 1);
-    while (++index < start) {
-      otherArgs[index] = args[index];
-    }
-    otherArgs[start] = array;
-    return apply(func, this, otherArgs);
-  };
-}
-
-/**
- * Creates a clone of  `buffer`.
- *
- * @private
- * @param {Buffer} buffer The buffer to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Buffer} Returns the cloned buffer.
- */
-function cloneBuffer(buffer, isDeep) {
-  if (isDeep) {
-    return buffer.slice();
-  }
-  var result = new buffer.constructor(buffer.length);
-  buffer.copy(result);
-  return result;
-}
-
-/**
- * Creates a clone of `arrayBuffer`.
- *
- * @private
- * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
- * @returns {ArrayBuffer} Returns the cloned array buffer.
- */
-function cloneArrayBuffer(arrayBuffer) {
-  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
-  new Uint8Array(result).set(new Uint8Array(arrayBuffer));
-  return result;
-}
-
-/**
- * Creates a clone of `dataView`.
- *
- * @private
- * @param {Object} dataView The data view to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned data view.
- */
-function cloneDataView(dataView, isDeep) {
-  var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
-  return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
-}
-
-/**
- * Creates a clone of `map`.
- *
- * @private
- * @param {Object} map The map to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned map.
- */
-function cloneMap(map, isDeep, cloneFunc) {
-  var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
-  return arrayReduce(array, addMapEntry, new map.constructor);
-}
-
-/**
- * Creates a clone of `regexp`.
- *
- * @private
- * @param {Object} regexp The regexp to clone.
- * @returns {Object} Returns the cloned regexp.
- */
-function cloneRegExp(regexp) {
-  var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
-  result.lastIndex = regexp.lastIndex;
-  return result;
-}
-
-/**
- * Creates a clone of `set`.
- *
- * @private
- * @param {Object} set The set to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned set.
- */
-function cloneSet(set, isDeep, cloneFunc) {
-  var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
-  return arrayReduce(array, addSetEntry, new set.constructor);
-}
-
-/**
- * Creates a clone of the `symbol` object.
- *
- * @private
- * @param {Object} symbol The symbol object to clone.
- * @returns {Object} Returns the cloned symbol object.
- */
-function cloneSymbol(symbol) {
-  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
-}
-
-/**
- * Creates a clone of `typedArray`.
- *
- * @private
- * @param {Object} typedArray The typed array to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned typed array.
- */
-function cloneTypedArray(typedArray, isDeep) {
-  var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
-  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
-}
-
-/**
- * Copies the values of `source` to `array`.
- *
- * @private
- * @param {Array} source The array to copy values from.
- * @param {Array} [array=[]] The array to copy values to.
- * @returns {Array} Returns `array`.
- */
-function copyArray(source, array) {
-  var index = -1,
-      length = source.length;
-
-  array || (array = Array(length));
-  while (++index < length) {
-    array[index] = source[index];
-  }
-  return array;
-}
-
-/**
- * Copies properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property identifiers to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @param {Function} [customizer] The function to customize copied values.
- * @returns {Object} Returns `object`.
- */
-function copyObject(source, props, object, customizer) {
-  object || (object = {});
-
-  var index = -1,
-      length = props.length;
-
-  while (++index < length) {
-    var key = props[index];
-
-    var newValue = customizer
-      ? customizer(object[key], source[key], key, object, source)
-      : undefined;
-
-    assignValue(object, key, newValue === undefined ? source[key] : newValue);
-  }
-  return object;
-}
-
-/**
- * Copies own symbol properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy symbols from.
- * @param {Object} [object={}] The object to copy symbols to.
- * @returns {Object} Returns `object`.
- */
-function copySymbols(source, object) {
-  return copyObject(source, getSymbols(source), object);
-}
-
-/**
- * Creates a function like `_.assign`.
- *
- * @private
- * @param {Function} assigner The function to assign values.
- * @returns {Function} Returns the new assigner function.
- */
-function createAssigner(assigner) {
-  return baseRest(function(object, sources) {
-    var index = -1,
-        length = sources.length,
-        customizer = length > 1 ? sources[length - 1] : undefined,
-        guard = length > 2 ? sources[2] : undefined;
-
-    customizer = (assigner.length > 3 && typeof customizer == 'function')
-      ? (length--, customizer)
-      : undefined;
-
-    if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-      customizer = length < 3 ? undefined : customizer;
-      length = 1;
-    }
-    object = Object(object);
-    while (++index < length) {
-      var source = sources[index];
-      if (source) {
-        assigner(object, source, index, customizer);
-      }
-    }
-    return object;
-  });
-}
-
-/**
- * Creates an array of own enumerable property names and symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function getAllKeys(object) {
-  return baseGetAllKeys(object, keys, getSymbols);
-}
-
-/**
- * Gets the data for `map`.
- *
- * @private
- * @param {Object} map The map to query.
- * @param {string} key The reference key.
- * @returns {*} Returns the map data.
- */
-function getMapData(map, key) {
-  var data = map.__data__;
-  return isKeyable(key)
-    ? data[typeof key == 'string' ? 'string' : 'hash']
-    : data.map;
-}
-
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = getValue(object, key);
-  return baseIsNative(value) ? value : undefined;
-}
-
-/**
- * Creates an array of the own enumerable symbol properties of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of symbols.
- */
-var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray;
-
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-var getTag = baseGetTag;
-
-// Fallback for data views, maps, sets, and weak maps in IE 11,
-// for data views in Edge < 14, and promises in Node.js.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-    (Map && getTag(new Map) != mapTag) ||
-    (Promise && getTag(Promise.resolve()) != promiseTag) ||
-    (Set && getTag(new Set) != setTag) ||
-    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-  getTag = function(value) {
-    var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : undefined;
-
-    if (ctorString) {
-      switch (ctorString) {
-        case dataViewCtorString: return dataViewTag;
-        case mapCtorString: return mapTag;
-        case promiseCtorString: return promiseTag;
-        case setCtorString: return setTag;
-        case weakMapCtorString: return weakMapTag;
-      }
-    }
-    return result;
-  };
-}
-
-/**
- * Initializes an array clone.
- *
- * @private
- * @param {Array} array The array to clone.
- * @returns {Array} Returns the initialized clone.
- */
-function initCloneArray(array) {
-  var length = array.length,
-      result = array.constructor(length);
-
-  // Add properties assigned by `RegExp#exec`.
-  if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
-    result.index = array.index;
-    result.input = array.input;
-  }
-  return result;
-}
-
-/**
- * Initializes an object clone.
- *
- * @private
- * @param {Object} object The object to clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneObject(object) {
-  return (typeof object.constructor == 'function' && !isPrototype(object))
-    ? baseCreate(getPrototype(object))
-    : {};
-}
-
-/**
- * Initializes an object clone based on its `toStringTag`.
- *
- * **Note:** This function only supports cloning values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to clone.
- * @param {string} tag The `toStringTag` of the object to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneByTag(object, tag, cloneFunc, isDeep) {
-  var Ctor = object.constructor;
-  switch (tag) {
-    case arrayBufferTag:
-      return cloneArrayBuffer(object);
-
-    case boolTag:
-    case dateTag:
-      return new Ctor(+object);
-
-    case dataViewTag:
-      return cloneDataView(object, isDeep);
-
-    case float32Tag: case float64Tag:
-    case int8Tag: case int16Tag: case int32Tag:
-    case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
-      return cloneTypedArray(object, isDeep);
-
-    case mapTag:
-      return cloneMap(object, isDeep, cloneFunc);
-
-    case numberTag:
-    case stringTag:
-      return new Ctor(object);
-
-    case regexpTag:
-      return cloneRegExp(object);
-
-    case setTag:
-      return cloneSet(object, isDeep, cloneFunc);
-
-    case symbolTag:
-      return cloneSymbol(object);
-  }
-}
-
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return !!length &&
-    (typeof value == 'number' || reIsUint.test(value)) &&
-    (value > -1 && value % 1 == 0 && value < length);
-}
-
-/**
- * Checks if the given arguments are from an iteratee call.
- *
- * @private
- * @param {*} value The potential iteratee value argument.
- * @param {*} index The potential iteratee index or key argument.
- * @param {*} object The potential iteratee object argument.
- * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
- *  else `false`.
- */
-function isIterateeCall(value, index, object) {
-  if (!isObject(object)) {
-    return false;
-  }
-  var type = typeof index;
-  if (type == 'number'
-        ? (isArrayLike(object) && isIndex(index, object.length))
-        : (type == 'string' && index in object)
-      ) {
-    return eq(object[index], value);
-  }
-  return false;
-}
-
-/**
- * Checks if `value` is suitable for use as unique object key.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
- */
-function isKeyable(value) {
-  var type = typeof value;
-  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
-    ? (value !== '__proto__')
-    : (value === null);
-}
-
-/**
- * Checks if `func` has its source masked.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` is masked, else `false`.
- */
-function isMasked(func) {
-  return !!maskSrcKey && (maskSrcKey in func);
-}
-
-/**
- * Checks if `value` is likely a prototype object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
- */
-function isPrototype(value) {
-  var Ctor = value && value.constructor,
-      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
-
-  return value === proto;
-}
-
-/**
- * This function is like
- * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
- * except that it includes inherited enumerable properties.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function nativeKeysIn(object) {
-  var result = [];
-  if (object != null) {
-    for (var key in Object(object)) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * Converts `func` to its source code.
- *
- * @private
- * @param {Function} func The function to process.
- * @returns {string} Returns the source code.
- */
-function toSource(func) {
-  if (func != null) {
-    try {
-      return funcToString.call(func);
-    } catch (e) {}
-    try {
-      return (func + '');
-    } catch (e) {}
-  }
-  return '';
-}
-
-/**
- * Performs a
- * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
- * comparison between two values to determine if they are equivalent.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'a': 1 };
- * var other = { 'a': 1 };
- *
- * _.eq(object, object);
- * // => true
- *
- * _.eq(object, other);
- * // => false
- *
- * _.eq('a', 'a');
- * // => true
- *
- * _.eq('a', Object('a'));
- * // => false
- *
- * _.eq(NaN, NaN);
- * // => true
- */
-function eq(value, other) {
-  return value === other || (value !== value && other !== other);
-}
-
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- *  else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-function isArguments(value) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
-
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(document.body.children);
- * // => false
- *
- * _.isArray('abc');
- * // => false
- *
- * _.isArray(_.noop);
- * // => false
- */
-var isArray = Array.isArray;
-
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
-  return value != null && isLength(value.length) && !isFunction(value);
-}
-
-/**
- * This method is like `_.isArrayLike` except that it also checks if `value`
- * is an object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object,
- *  else `false`.
- * @example
- *
- * _.isArrayLikeObject([1, 2, 3]);
- * // => true
- *
- * _.isArrayLikeObject(document.body.children);
- * // => true
- *
- * _.isArrayLikeObject('abc');
- * // => false
- *
- * _.isArrayLikeObject(_.noop);
- * // => false
- */
-function isArrayLikeObject(value) {
-  return isObjectLike(value) && isArrayLike(value);
-}
-
-/**
- * Checks if `value` is a buffer.
- *
- * @static
- * @memberOf _
- * @since 4.3.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
- * @example
- *
- * _.isBuffer(new Buffer(2));
- * // => true
- *
- * _.isBuffer(new Uint8Array(2));
- * // => false
- */
-var isBuffer = nativeIsBuffer || stubFalse;
-
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a function, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 8-9 which returns 'object' for typed array and other constructors.
-  var tag = isObject(value) ? objectToString.call(value) : '';
-  return tag == funcTag || tag == genTag;
-}
-
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This method is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
-  return typeof value == 'number' &&
-    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
-
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
-}
-
-/**
- * Checks if `value` is a plain object, that is, an object created by the
- * `Object` constructor or one with a `[[Prototype]]` of `null`.
- *
- * @static
- * @memberOf _
- * @since 0.8.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- * }
- *
- * _.isPlainObject(new Foo);
- * // => false
- *
- * _.isPlainObject([1, 2, 3]);
- * // => false
- *
- * _.isPlainObject({ 'x': 0, 'y': 0 });
- * // => true
- *
- * _.isPlainObject(Object.create(null));
- * // => true
- */
-function isPlainObject(value) {
-  if (!isObjectLike(value) ||
-      objectToString.call(value) != objectTag || isHostObject(value)) {
-    return false;
-  }
-  var proto = getPrototype(value);
-  if (proto === null) {
-    return true;
-  }
-  var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
-  return (typeof Ctor == 'function' &&
-    Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString);
-}
-
-/**
- * Checks if `value` is classified as a typed array.
- *
- * @static
- * @memberOf _
- * @since 3.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
- * @example
- *
- * _.isTypedArray(new Uint8Array);
- * // => true
- *
- * _.isTypedArray([]);
- * // => false
- */
-var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
-
-/**
- * Converts `value` to a plain object flattening inherited enumerable string
- * keyed properties of `value` to own properties of the plain object.
- *
- * @static
- * @memberOf _
- * @since 3.0.0
- * @category Lang
- * @param {*} value The value to convert.
- * @returns {Object} Returns the converted plain object.
- * @example
- *
- * function Foo() {
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.assign({ 'a': 1 }, new Foo);
- * // => { 'a': 1, 'b': 2 }
- *
- * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
- * // => { 'a': 1, 'b': 2, 'c': 3 }
- */
-function toPlainObject(value) {
-  return copyObject(value, keysIn(value));
-}
-
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
-function keys(object) {
-  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
-}
-
-/**
- * Creates an array of the own and inherited enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @memberOf _
- * @since 3.0.0
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keysIn(new Foo);
- * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
- */
-function keysIn(object) {
-  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
-}
-
-/**
- * This method is like `_.assign` except that it recursively merges own and
- * inherited enumerable string keyed properties of source objects into the
- * destination object. Source properties that resolve to `undefined` are
- * skipped if a destination value exists. Array and plain object properties
- * are merged recursively. Other objects and value types are overridden by
- * assignment. Source objects are applied from left to right. Subsequent
- * sources overwrite property assignments of previous sources.
- *
- * **Note:** This method mutates `object`.
- *
- * @static
- * @memberOf _
- * @since 0.5.0
- * @category Object
- * @param {Object} object The destination object.
- * @param {...Object} [sources] The source objects.
- * @returns {Object} Returns `object`.
- * @example
- *
- * var object = {
- *   'a': [{ 'b': 2 }, { 'd': 4 }]
- * };
- *
- * var other = {
- *   'a': [{ 'c': 3 }, { 'e': 5 }]
- * };
- *
- * _.merge(object, other);
- * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
- */
-var merge = createAssigner(function(object, source, srcIndex) {
-  baseMerge(object, source, srcIndex);
-});
-
-/**
- * This method returns a new empty array.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {Array} Returns the new empty array.
- * @example
- *
- * var arrays = _.times(2, _.stubArray);
- *
- * console.log(arrays);
- * // => [[], []]
- *
- * console.log(arrays[0] === arrays[1]);
- * // => false
- */
-function stubArray() {
-  return [];
-}
-
-/**
- * This method returns `false`.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {boolean} Returns `false`.
- * @example
- *
- * _.times(2, _.stubFalse);
- * // => [false, false]
- */
-function stubFalse() {
-  return false;
-}
-
-module.exports = merge;
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(3), __webpack_require__(4)(module)))
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports) {
-
-var g;
-
-// This works in non-strict mode
-g = (function() {
-	return this;
-})();
-
-try {
-	// This works if eval is allowed (see CSP)
-	g = g || Function("return this")() || (1,eval)("this");
-} catch(e) {
-	// This works if the window reference is available
-	if(typeof window === "object")
-		g = window;
-}
-
-// g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-module.exports = g;
-
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports) {
-
-module.exports = function(module) {
-	if(!module.webpackPolyfill) {
-		module.deprecate = function() {};
-		module.paths = [];
-		// module.parent = undefined by default
-		if(!module.children) module.children = [];
-		Object.defineProperty(module, "loaded", {
-			enumerable: true,
-			get: function() {
-				return module.l;
-			}
-		});
-		Object.defineProperty(module, "id", {
-			enumerable: true,
-			get: function() {
-				return module.i;
-			}
-		});
-		module.webpackPolyfill = 1;
-	}
-	return module;
-};
-
-
-/***/ }),
-/* 5 */
 /***/ (function(module, exports) {
 
 module.exports = {
@@ -3153,6 +825,10 @@ module.exports = {
             this.renderChart(this.chartData, this.options);
           }
         } else {
+          if (this.$data._chart) {
+            this.$data._chart.destroy();
+          }
+
           this.renderChart(this.chartData, this.options);
         }
       }
@@ -3161,7 +837,7 @@ module.exports = {
 };
 
 /***/ }),
-/* 6 */
+/* 3 */
 /***/ (function(module, exports) {
 
 module.exports = {
@@ -3220,6 +896,10 @@ module.exports = {
             this.renderChart(this.chartData, this.options);
           }
         } else {
+          if (this.$data._chart) {
+            this.$data._chart.destroy();
+          }
+
           this.renderChart(this.chartData, this.options);
         }
       }
@@ -3228,10 +908,10 @@ module.exports = {
 };
 
 /***/ }),
-/* 7 */
+/* 4 */
 /***/ (function(module, exports) {
 
-module.exports = {"name":"vue-chartjs","version":"3.0.2","description":"Vue.js wrapper for chart.js for creating beautiful charts.","author":"Jakub Juszczak <jakub@posteo.de>","homepage":"http://vue-chartjs.org","license":"MIT","contributors":[{"name":"Thorsten Lünborg","web":"https://github.com/LinusBorg"},{"name":"Juan Carlos Alonso","web":"https://github.com/jcalonso"}],"maintainers":[{"name":"Jakub Juszczak","email":"jakub@posteo.de","web":"http://www.jakubjuszczak.de"}],"repository":{"type":"git","url":"git+ssh://git@github.com:apertureless/vue-chartjs.git"},"bugs":{"url":"https://github.com/apertureless/vue-chartjs/issues"},"keywords":["ChartJs","Vue","Visualisation","Wrapper","Charts"],"main":"dist/vue-chartjs.js","unpkg":"dist/vue-chartjs.min.js","module":"es/index.js","jsnext:main":"es/index.js","files":["src","dist","es"],"scripts":{"dev":"node build/dev-server.js","build":"yarn run release && yarn run build:es","build:es":"cross-env BABEL_ENV=es babel src --out-dir es","unit":"karma start test/unit/karma.conf.js --single-run","e2e":"node test/e2e/runner.js","test":"npm run unit","lint":"eslint --ext .js,.vue src test/unit/specs test/e2e/specs","release":"webpack --progress --hide-modules --config  ./build/webpack.release.js && NODE_ENV=production webpack --progress --hide-modules --config  ./build/webpack.release.min.js","prepublishOnly":"yarn run lint && yarn run test && yarn run build"},"dependencies":{"lodash.merge":"^4.6.0"},"peerDependencies":{"chart.js":"2.7.x"},"devDependencies":{"@babel/cli":"^7.0.0-beta.31","@babel/core":"^7.0.0-beta.31","@babel/preset-env":"^7.0.0-beta.31","@babel/preset-stage-2":"^7.0.0-beta.31","babel-loader":"8.0.0-beta.0","chai":"^3.5.0","chart.js":"2.7.0","chromedriver":"^2.28.0","connect-history-api-fallback":"^1.1.0","cross-env":"^3.2.4","cross-spawn":"^5.1.0","css-loader":"^0.28.0","eslint":"^3.19.0","eslint-config-standard":"^10.2.1","eslint-friendly-formatter":"^2.0.7","eslint-loader":"^1.7.1","eslint-plugin-html":"^2.0.1","eslint-plugin-import":"^2.2.0","eslint-plugin-node":"^4.2.2","eslint-plugin-promise":"^3.5.0","eslint-plugin-standard":"^3.0.1","eventsource-polyfill":"^0.9.6","express":"^4.15.2","extract-text-webpack-plugin":"^3.0.1","file-loader":"^0.10.1","friendly-errors-webpack-plugin":"^1.6.1","function-bind":"^1.0.2","html-webpack-plugin":"^2.28.0","http-proxy-middleware":"^0.17.4","inject-loader":"^3.0.0","isparta":"^4.0.0","jasmine-core":"^2.5.2","json-loader":"^0.5.4","karma":"^1.5.0","karma-coverage":"^1.1.1","karma-jasmine":"^1.0.2","karma-mocha":"^1.2.0","karma-phantomjs-launcher":"^1.0.4","karma-phantomjs-shim":"^1.4.0","karma-sinon-chai":"^1.2.0","karma-sourcemap-loader":"^0.3.7","karma-spec-reporter":"0.0.30","karma-webpack":"2","lolex":"^1.6.0","mocha":"^3.1.0","nightwatch":"^0.9.14","opn":"^5.1.0","ora":"^1.2.0","phantomjs-prebuilt":"^2.1.13","portfinder":"^1.0.13","selenium-server":"^3.3.1","shelljs":"^0.7.7","sinon":"^2.1.0","sinon-chai":"^2.9.0","url-loader":"^0.5.8","vue":"2.5.2","vue-hot-reload-api":"2.1.0","vue-html-loader":"^1.2.4","vue-loader":"^13.3.0","vue-style-loader":"3.0.1","vue-template-compiler":"2.5.2","webpack":"^3.7.1","webpack-dev-middleware":"^1.10.1","webpack-hot-middleware":"^2.17.1","webpack-merge":"^4.1.0"},"engines":{"node":">=6.9.0","npm":">= 3.0.0"},"browserify":{"transform":["babelify"]},"greenkeeper":{"ignore":["extract-text-webpack-plugin","karma-webpack","webpack","webpack-merge"]}}
+module.exports = {"name":"vue-chartjs","version":"3.1.0","description":"Vue.js wrapper for chart.js for creating beautiful charts.","author":"Jakub Juszczak <jakub@posteo.de>","homepage":"http://vue-chartjs.org","license":"MIT","contributors":[{"name":"Thorsten Lünborg","web":"https://github.com/LinusBorg"},{"name":"Juan Carlos Alonso","web":"https://github.com/jcalonso"}],"maintainers":[{"name":"Jakub Juszczak","email":"jakub@posteo.de","web":"http://www.jakubjuszczak.de"}],"repository":{"type":"git","url":"git+ssh://git@github.com:apertureless/vue-chartjs.git"},"bugs":{"url":"https://github.com/apertureless/vue-chartjs/issues"},"keywords":["ChartJs","Vue","Visualisation","Wrapper","Charts"],"main":"dist/vue-chartjs.js","unpkg":"dist/vue-chartjs.min.js","module":"es/index.js","jsnext:main":"es/index.js","files":["src","dist","es"],"scripts":{"dev":"node build/dev-server.js","build":"yarn run release && yarn run build:es","build:es":"cross-env BABEL_ENV=es babel src --out-dir es","unit":"karma start test/unit/karma.conf.js --single-run","e2e":"node test/e2e/runner.js","test":"npm run unit","lint":"eslint --ext .js,.vue src test/unit/specs test/e2e/specs","release":"webpack --progress --hide-modules --config  ./build/webpack.release.js && cross-env NODE_ENV=production webpack --progress --hide-modules --config  ./build/webpack.release.min.js","prepublishOnly":"yarn run lint && yarn run test && yarn run build"},"dependencies":{},"peerDependencies":{"chart.js":"2.7.x"},"devDependencies":{"@babel/cli":"^7.0.0-beta.31","@babel/core":"^7.0.0-beta.31","@babel/preset-env":"^7.0.0-beta.31","@babel/preset-stage-2":"^7.0.0-beta.31","babel-loader":"8.0.0-beta.0","chai":"^3.5.0","chart.js":"2.7.0","chromedriver":"^2.28.0","connect-history-api-fallback":"^1.1.0","cross-env":"^5.1.1","cross-spawn":"^5.1.0","css-loader":"^0.28.0","eslint":"^3.19.0","eslint-config-standard":"^10.2.1","eslint-friendly-formatter":"^2.0.7","eslint-loader":"^1.7.1","eslint-plugin-html":"^2.0.1","eslint-plugin-import":"^2.2.0","eslint-plugin-node":"^4.2.2","eslint-plugin-promise":"^3.5.0","eslint-plugin-standard":"^3.0.1","eventsource-polyfill":"^0.9.6","express":"^4.15.2","extract-text-webpack-plugin":"^3.0.1","file-loader":"^0.10.1","friendly-errors-webpack-plugin":"^1.6.1","function-bind":"^1.0.2","html-webpack-plugin":"^2.28.0","http-proxy-middleware":"^0.17.4","inject-loader":"^3.0.0","isparta":"^4.0.0","jasmine-core":"^2.5.2","json-loader":"^0.5.4","karma":"^1.5.0","karma-coverage":"^1.1.1","karma-jasmine":"^1.0.2","karma-mocha":"^1.2.0","karma-phantomjs-launcher":"^1.0.4","karma-phantomjs-shim":"^1.4.0","karma-sinon-chai":"^1.2.0","karma-sourcemap-loader":"^0.3.7","karma-spec-reporter":"0.0.30","karma-webpack":"2","lolex":"^1.6.0","mocha":"^3.1.0","opn":"^5.1.0","ora":"^1.2.0","phantomjs-prebuilt":"^2.1.13","portfinder":"^1.0.13","selenium-server":"^3.3.1","shelljs":"^0.7.7","sinon":"^2.1.0","sinon-chai":"^2.9.0","url-loader":"^0.5.8","vue":"2.5.2","vue-hot-reload-api":"2.1.0","vue-html-loader":"^1.2.4","vue-loader":"^13.3.0","vue-style-loader":"3.0.1","vue-template-compiler":"2.5.2","webpack":"^3.7.1","webpack-dev-middleware":"^1.10.1","webpack-hot-middleware":"^2.17.1","webpack-merge":"^4.1.0"},"engines":{"node":">=6.9.0","npm":">= 3.0.0"},"browserify":{"transform":["babelify"]},"greenkeeper":{"ignore":["extract-text-webpack-plugin","karma-webpack","webpack","webpack-merge"]}}
 
 /***/ })
 /******/ ]);
diff --git a/dist/vue-chartjs.min.js b/dist/vue-chartjs.min.js
index 453d2858..2e48857d 100644
--- a/dist/vue-chartjs.min.js
+++ b/dist/vue-chartjs.min.js
@@ -1 +1 @@
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