Add calculation with funcitons

calculatingWithFunction.js

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+// https://www.codewars.com/kata/525f3eda17c7cd9f9e000b39
+
+// This time we want to write calculations using functions and get the results. Let's have a look at some examples:
+
+// Examples
+// seven(times(five())); // must return 35
+// four(plus(nine())); // must return 13
+// eight(minus(three())); // must return 5
+// six(dividedBy(two())); // must return 3
+
+function executeValue(callback) { return typeof callback === 'function' ? callback(value) : value }
+function zero(callback) {
+  const value = 0;
+  return executeValue(callback);
+}
+function one(callback) {
+  const value = 1;
+  return executeValue(callback);
+}
+function two(callback) {
+  const value = 2;
+  return executeValue(callback);
+}
+function three(callback) {
+  const value = 3;
+  return executeValue(callback);
+}
+function four(callback) {
+  const value = 4;
+  return executeValue(callback);
+}
+function five(callback) {
+  const value = 5;
+  return executeValue(callback);
+}
+function six(callback) {
+  const value = 6;
+  return executeValue(callback);
+}
+function seven(callback) {
+  const value = 7;
+  return executeValue(callback);
+}
+function eight(callback) {
+  const value = 8;
+  return executeValue(callback);
+}
+function nine(callback) {
+  const value = 9;
+  return executeValue(callback);
+}
+
+function plus(a) {
+  return (b) => {
+    return a + b
+  }
+}
+function minus(a) {
+  return (b) => {
+    return b - a
+  }
+}
+function times(a) {
+  return (b) => {
+    return a * b
+  }
+}
+function dividedBy(a) {
+  return (b) => {
+    return Math.floor(b/a)
+  }
+}