task solution

package.json

@@ -16,7 +16,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "*",
-    "@mate-academy/scripts": "^0.3.5",
+    "@mate-academy/scripts": "^1.2.8",
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",

src/transformState.js

@@ -5,7 +5,23 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
-  // write code here
+  for (const action of actions) {
+    if (action.type === 'addProperties') {
+      for (const key in action.extraData) {
+        state[key] = action.extraData[key];
+      }
+    } else if (action.type === 'removeProperties') {
+      for (const key of action.keysToRemove) {
+        delete state[key];
+      }
+    } else if (action.type === 'clear') {
+      for (const key in state) {
+        delete state[key];
+      }
+    }
+  }
+
+  return state;
 }
 
 module.exports = transformState;