From 1fb9bc5ac0f8725b783f5f933fbcd247d4162eff Mon Sep 17 00:00:00 2001
From: Patryk <wierzbowskipatryk0@gmail.com>
Date: Mon, 14 Aug 2023 14:39:28 +0200
Subject: [PATCH 1/3] Solution

---
 src/transformState.js | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/transformState.js b/src/transformState.js
index a1eaa0640..6e426eb41 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -5,7 +5,26 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
-  // write code here
-}
+  for (const action of actions) {
+    if (action.type === 'addProperties') {
+      const extraData = action.extraData;
+
+      for (const key in extraData) {
+        state[key] = extraData[key];
+      }
+    } else if (action.type === 'removeProperties') {
+      const keysToRemove = action.keysToRemove;
 
+      for (const key of keysToRemove) {
+        if (state.hasOwnProperty(key)) {
+          delete state[key];
+        }
+      }
+    } else if (action.type === 'clear') {
+      for (const key in state) {
+        delete state[key];
+      }
+    }
+  }
+}
 module.exports = transformState;

From ef96248ad1d2e9db1a5219df4e32eedac669e0c6 Mon Sep 17 00:00:00 2001
From: Patrykmclaren14 <wierzbowskipatryk5@gmail.com>
Date: Mon, 30 Oct 2023 13:03:20 +0100
Subject: [PATCH 2/3] add task solution

---
 src/transformState.js | 41 +++++++++++++++++++++++++++--------------
 1 file changed, 27 insertions(+), 14 deletions(-)

diff --git a/src/transformState.js b/src/transformState.js
index 6e426eb41..27fefc8c9 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -4,27 +4,40 @@
  * @param {Object} state
  * @param {Object[]} actions
  */
+
+const add = 'addProperties';
+const remove = 'removeProperties';
+const clear = 'clear';
+
 function transformState(state, actions) {
   for (const action of actions) {
-    if (action.type === 'addProperties') {
-      const extraData = action.extraData;
+    switch (action.type) {
+      case add:
+        for (const key in action.extraData) {
+          state[key] = action.extraData[key];
+        }
+        break;
 
-      for (const key in extraData) {
-        state[key] = extraData[key];
-      }
-    } else if (action.type === 'removeProperties') {
-      const keysToRemove = action.keysToRemove;
+      case remove:
+        for (const key of action.keysToRemove) {
+          if (state.hasOwnProperty(key)) {
+            delete state[key];
+          }
+        }
+        break;
 
-      for (const key of keysToRemove) {
-        if (state.hasOwnProperty(key)) {
+      case clear:
+        for (const key in state) {
           delete state[key];
         }
-      }
-    } else if (action.type === 'clear') {
-      for (const key in state) {
-        delete state[key];
-      }
+        break;
+
+      default:
+        return 'Unknown action type';
     }
   }
+
+  return state;
 }
+
 module.exports = transformState;

From ed94764016722438e29386e7347c1bb8e3bc585d Mon Sep 17 00:00:00 2001
From: Patrykmclaren14 <wierzbowskipatryk5@gmail.com>
Date: Tue, 31 Oct 2023 12:03:37 +0100
Subject: [PATCH 3/3] solution

---
 src/transformState.js | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/src/transformState.js b/src/transformState.js
index 27fefc8c9..069700da9 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -5,31 +5,29 @@
  * @param {Object[]} actions
  */
 
-const add = 'addProperties';
-const remove = 'removeProperties';
-const clear = 'clear';
+const ADD = 'addProperties';
+const REMOVE = 'removeProperties';
+const CLEAR = 'clear';
 
 function transformState(state, actions) {
   for (const action of actions) {
     switch (action.type) {
-      case add:
-        for (const key in action.extraData) {
-          state[key] = action.extraData[key];
-        }
+      case ADD:
+        Object.assign(state, action.extraData);
         break;
 
-      case remove:
-        for (const key of action.keysToRemove) {
+      case REMOVE:
+        action.keysToRemove.forEach(key => {
           if (state.hasOwnProperty(key)) {
             delete state[key];
           }
-        }
+        });
         break;
 
-      case clear:
-        for (const key in state) {
+      case CLEAR:
+        Object.keys(state).forEach(key => {
           delete state[key];
-        }
+        });
         break;
 
       default: