created function transform state with clones

src/transformStateWithClones.js

@@ -7,7 +7,41 @@
  * @return {Object[]}
  */
 function transformStateWithClones(state, actions) {
-  // write code here
+  const resultedArray = [];
+
+  for (const action of actions) {
+    const type = action.type;
+    const lastChangedObject = resultedArray.at(-1) || state;
+    let resultObject = Object.assign({}, lastChangedObject);
+
+    switch (type) {
+      case 'addProperties': {
+        Object.assign(resultObject, action.extraData);
+        break;
+      }
+
+      case 'removeProperties': {
+        removeProperties(action, resultObject);
+        break;
+      }
+      case 'clear':
+        resultObject = {};
+        break;
+
+      default:
+        throw new Error(`Unknown action type: ${type}`);
+    }
+
+    resultedArray.push(resultObject);
+  }
+
+  return resultedArray;
 }
 
 module.exports = transformStateWithClones;
+
+function removeProperties(action, resultObject) {
+  action.keysToRemove.forEach((key) => {
+    delete resultObject[key];
+  });
+}