From a961bde0c2b3cad1dd1b04d44727b133e990163c Mon Sep 17 00:00:00 2001
From: Mykyta <f1xggofficial@gmail.com>
Date: Wed, 31 Dec 2025 12:51:04 +0100
Subject: [PATCH 1/2] solved task

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

diff --git a/src/transformStateWithClones.js b/src/transformStateWithClones.js
index 96d4f7e7e..8da87e02b 100644
--- a/src/transformStateWithClones.js
+++ b/src/transformStateWithClones.js
@@ -7,7 +7,35 @@
  * @return {Object[]}
  */
 function transformStateWithClones(state, actions) {
-  // write code here
+  const stateCopy = [];
+  let current = { ...state };
+
+  for (const action of actions) {
+    const next = { ...current };
+
+    switch (action.type) {
+      case 'addProperties':
+        Object.assign(next, action.extraData);
+        break;
+      case 'removeProperties':
+        for (const key of action.keysToRemove) {
+          delete next[key];
+        }
+        break;
+      case 'clear':
+        for (const key of Object.keys(next)) {
+          delete next[key];
+        }
+        break;
+      default:
+        break;
+    }
+
+    stateCopy.push(next);
+    current = next;
+  }
+
+  return stateCopy;
 }
 
 module.exports = transformStateWithClones;

From 4657517fb378579c0b448dc9982fc30bd1205a7d Mon Sep 17 00:00:00 2001
From: Mykyta <f1xggofficial@gmail.com>
Date: Wed, 31 Dec 2025 12:58:13 +0100
Subject: [PATCH 2/2] fixed code with menthor review

---
 src/transformStateWithClones.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/transformStateWithClones.js b/src/transformStateWithClones.js
index 8da87e02b..9badbd296 100644
--- a/src/transformStateWithClones.js
+++ b/src/transformStateWithClones.js
@@ -7,7 +7,7 @@
  * @return {Object[]}
  */
 function transformStateWithClones(state, actions) {
-  const stateCopy = [];
+  const stateHistory = [];
   let current = { ...state };
 
   for (const action of actions) {
@@ -28,14 +28,14 @@ function transformStateWithClones(state, actions) {
         }
         break;
       default:
-        break;
+        throw new Error(`Unknown action type: ${action.type}`);
     }
 
-    stateCopy.push(next);
+    stateHistory.push(next);
     current = next;
   }
 
-  return stateCopy;
+  return stateHistory;
 }
 
 module.exports = transformStateWithClones;