From b7ddd0da1e5ca33df2c4d8c96a4af3d98085202e Mon Sep 17 00:00:00 2001
From: Tobiasz Nowak <Tobiaszekn@gmail.com>
Date: Thu, 30 Nov 2023 13:24:25 +0100
Subject: [PATCH] Solution

---
 .github/workflows/test.yml |  2 +-
 package.json               |  2 +-
 src/transformState.js      | 22 +++++++++++++++++++++-
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index def73e604..e80632740 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/package.json b/package.json
index e83fa6dc7..f2cf54e90 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "*",
-    "@mate-academy/scripts": "^0.3.5",
+    "@mate-academy/scripts": "^1.2.12",
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",
diff --git a/src/transformState.js b/src/transformState.js
index a1eaa0640..5584f578a 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) {
+    const { type, extraData, keysToRemove } = action;
+
+    switch (type) {
+      case 'addProperties':
+        Object.assign(state, extraData);
+        break;
+
+      case 'removeProperties':
+        for (const key of keysToRemove) {
+          delete state[key];
+        }
+        break;
+
+      case 'clear':
+        for (const key in state) {
+          delete state[key];
+        }
+        break;
+    }
+  }
 }
 
 module.exports = transformState;