Implement changes

src/transformState.js

@@ -5,24 +5,33 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
-  // write code here
   for (const action of actions) {
-    if (action.type === 'clear') {
-      for (const s in state) {
-        delete state[s];
+    const { type, extraData, keysToRemove } = action;
+
+    switch (true) {
+      case type === 'clear': {
+        for (const s in state) {
+          delete state[s];
+        }
+        break;
       }
-    }
 
-    if (action.type === 'addProperties') {
-      Object.assign(state, action.extraData);
-    }
+      case type === 'addProperties': {
+        Object.assign(state, extraData);
+        break;
+      }
 
-    if (action.type === 'removeProperties') {
-      for (const key of action.keysToRemove) {
-        delete state[key];
+      case type === 'removeProperties': {
+        for (const key of keysToRemove) {
+          delete state[key];
+        }
+        break;
       }
-    }
-  }
+
+      default:
+        return 'Unexpected acrion';
+    };
+  };
 
   return state;
 }