From 15f3cf73ac0404f99ab386a64c44601d80777309 Mon Sep 17 00:00:00 2001
From: Roman Perepelkin <perepelkinrs@gmail.com>
Date: Fri, 4 Aug 2023 13:07:15 +0300
Subject: [PATCH 1/2] Solution

---
 src/transformState.js | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/transformState.js b/src/transformState.js
index a1eaa0640..f32c24f93 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -5,7 +5,25 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
-  // write code here
+  for (const obj of actions) {
+    if (obj.type === 'addProperties') {
+      Object.assign(state, obj.extraData);
+    }
+
+    if (obj.type === 'removeProperties') {
+      for (const key of obj.keysToRemove) {
+        delete state[key];
+      }
+    }
+
+    if (obj.type === 'clear') {
+      for (const prop in state) {
+        delete state[prop];
+      }
+    }
+  }
+
+  return state;
 }
 
 module.exports = transformState;

From f00b2a8ce49f99fc3afb1e5ef41354b3d1d2f7a0 Mon Sep 17 00:00:00 2001
From: Roman Perepelkin <perepelkinrs@gmail.com>
Date: Fri, 4 Aug 2023 15:14:02 +0300
Subject: [PATCH 2/2] Solution

---
 src/transformState.js | 35 +++++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/src/transformState.js b/src/transformState.js
index f32c24f93..ce7a6c2c2 100644
--- a/src/transformState.js
+++ b/src/transformState.js
@@ -5,21 +5,32 @@
  * @param {Object[]} actions
  */
 function transformState(state, actions) {
+  const TYPE_ONE = 'addProperties';
+  const TYPE_TWO = 'removeProperties';
+  const TYPE_THREE = 'clear';
+
   for (const obj of actions) {
-    if (obj.type === 'addProperties') {
-      Object.assign(state, obj.extraData);
-    }
+    const { type } = obj;
 
-    if (obj.type === 'removeProperties') {
-      for (const key of obj.keysToRemove) {
-        delete state[key];
-      }
-    }
+    switch (type) {
+      case TYPE_ONE:
+        Object.assign(state, obj.extraData);
+        break;
+
+      case TYPE_TWO:
+        for (const key of obj.keysToRemove) {
+          delete state[key];
+        }
+        break;
+
+      case TYPE_THREE:
+        for (const prop in state) {
+          delete state[prop];
+        }
+        break;
 
-    if (obj.type === 'clear') {
-      for (const prop in state) {
-        delete state[prop];
-      }
+      default:
+        return state;
     }
   }