From 93c8b6c9894764de9f9852991b87c34d377a192f Mon Sep 17 00:00:00 2001
From: Your Name <your_email@whatever.com>
Date: Thu, 2 Nov 2023 14:19:43 +0200
Subject: [PATCH 1/2] Solution

---
 src/transformState.js | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/transformState.js b/src/transformState.js
index a1eaa064..48f7221b 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -5,7 +5,27 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
-  // write code here
+  for (const action of actions) {
+    switch (action.type) {
+      case 'addProperties':
+        for (const data in action.extraData) {
+          const prop = action.extraData[data];
+
+          state[data] = prop;
+        }
+        break;
+      case 'removeProperties':
+        for (const key of action.keysToRemove) {
+          delete state[key];
+        }
+        break;
+      case 'clear':
+        for (const key in state) {
+          delete state[key];
+        }
+        break;
+    }
+  }
 }
 
 module.exports = transformState;

From 3dc872868346b74308f80b4ccd0c9cfda4225fba Mon Sep 17 00:00:00 2001
From: Your Name <your_email@whatever.com>
Date: Thu, 2 Nov 2023 21:09:51 +0200
Subject: [PATCH 2/2] Solution1

---
 src/transformState.js | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/transformState.js b/src/transformState.js
index 48f7221b..9d7b6152 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -6,22 +6,24 @@
  */
 function transformState(state, actions) {
   for (const action of actions) {
+    // the function changes the given object `state` according to the
+    // specified conditions in `actions` array of objects
     switch (action.type) {
       case 'addProperties':
-        for (const data in action.extraData) {
-          const prop = action.extraData[data];
+        for (const property in action.extraData) {
+          const value = action.extraData[property];
 
-          state[data] = prop;
+          state[property] = value;
         }
         break;
       case 'removeProperties':
-        for (const key of action.keysToRemove) {
-          delete state[key];
+        for (const propertyName of action.keysToRemove) {
+          delete state[propertyName];
         }
         break;
       case 'clear':
-        for (const key in state) {
-          delete state[key];
+        for (const propertyName in state) {
+          delete state[propertyName];
         }
         break;
     }