From a6fc897b007e71741db12ef512b9b915f6367686 Mon Sep 17 00:00:00 2001
From: DenisNosov22 <dennosov2210@gmail.com>
Date: Fri, 26 Dec 2025 15:52:39 +0200
Subject: [PATCH 1/2] js test too

---
 src/transformStateWithClones.js | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/transformStateWithClones.js b/src/transformStateWithClones.js
index 96d4f7e7e..997959600 100644
--- a/src/transformStateWithClones.js
+++ b/src/transformStateWithClones.js
@@ -7,7 +7,35 @@
  * @return {Object[]}
  */
 function transformStateWithClones(state, actions) {
-  // write code here
+  const history = [];
+  let currentState = { ...state };
+
+  for (const action of actions) {
+    if (action.type === 'clear') {
+      currentState = {};
+    }
+
+    if (action.type === 'addProperties') {
+      currentState = {
+        ...currentState,
+        ...action.extraData,
+      };
+    }
+
+    if (action.type === 'removeProperties') {
+      const nextState = { ...currentState };
+
+      for (const key of action.keysToRemove) {
+        delete nextState[key];
+      }
+
+      currentState = nextState;
+    }
+
+    history.push(currentState);
+  }
+
+  return history;
 }
 
 module.exports = transformStateWithClones;

From e6d4ecba407a89c9b3c7c1d77c38e597b27fd745 Mon Sep 17 00:00:00 2001
From: DenisNosov22 <dennosov2210@gmail.com>
Date: Fri, 26 Dec 2025 16:02:30 +0200
Subject: [PATCH 2/2] js test *

---
 src/transformStateWithClones.js | 40 +++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/src/transformStateWithClones.js b/src/transformStateWithClones.js
index 997959600..13cb01c8d 100644
--- a/src/transformStateWithClones.js
+++ b/src/transformStateWithClones.js
@@ -11,25 +11,31 @@ function transformStateWithClones(state, actions) {
   let currentState = { ...state };
 
   for (const action of actions) {
-    if (action.type === 'clear') {
-      currentState = {};
-    }
-
-    if (action.type === 'addProperties') {
-      currentState = {
-        ...currentState,
-        ...action.extraData,
-      };
-    }
-
-    if (action.type === 'removeProperties') {
-      const nextState = { ...currentState };
-
-      for (const key of action.keysToRemove) {
-        delete nextState[key];
+    switch (action.type) {
+      case 'clear':
+        currentState = {};
+        break;
+
+      case 'addProperties':
+        currentState = {
+          ...currentState,
+          ...action.extraData,
+        };
+        break;
+
+      case 'removeProperties': {
+        const nextState = { ...currentState };
+
+        for (const key of action.keysToRemove) {
+          delete nextState[key];
+        }
+
+        currentState = nextState;
+        break;
       }
 
-      currentState = nextState;
+      default:
+        throw new Error(`Unknown action type: ${action.type}`);
     }
 
     history.push(currentState);