From 09918533edc7dc89dc68d35ebf2f86212d2def97 Mon Sep 17 00:00:00 2001
From: unknown <oleksa77199@gmail.com>
Date: Tue, 14 Jul 2026 23:09:08 +0300
Subject: [PATCH 1/2] Solution

---
 .github/workflows/test.yml-template | 23 ++++++++++++++++++++
 package-lock.json                   |  9 ++++----
 package.json                        |  2 +-
 src/formatDate.js                   | 33 +++++++++++++++++++++++++++++
 4 files changed, 62 insertions(+), 5 deletions(-)
 create mode 100644 .github/workflows/test.yml-template

diff --git a/.github/workflows/test.yml-template b/.github/workflows/test.yml-template
new file mode 100644
index 000000000..bb13dfc45
--- /dev/null
+++ b/.github/workflows/test.yml-template
@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test
diff --git a/package-lock.json b/package-lock.json
index 5794158b4..83e6357ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "license": "GPL-3.0",
       "devDependencies": {
         "@mate-academy/eslint-config": "latest",
-        "@mate-academy/scripts": "^1.8.6",
+        "@mate-academy/scripts": "^2.1.3",
         "eslint": "^8.57.0",
         "eslint-plugin-jest": "^28.6.0",
         "eslint-plugin-node": "^11.1.0",
@@ -1467,10 +1467,11 @@
       }
     },
     "node_modules/@mate-academy/scripts": {
-      "version": "1.8.6",
-      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-1.8.6.tgz",
-      "integrity": "sha512-b4om/whj4G9emyi84ORE3FRZzCRwRIesr8tJHXa8EvJdOaAPDpzcJ8A0sFfMsWH9NUOVmOwkBtOXDu5eZZ00Ig==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-2.1.3.tgz",
+      "integrity": "sha512-a07wHTj/1QUK2Aac5zHad+sGw4rIvcNl5lJmJpAD7OxeSbnCdyI6RXUHwXhjF5MaVo9YHrJ0xVahyERS2IIyBQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@octokit/rest": "^17.11.2",
         "@types/get-port": "^4.2.0",
diff --git a/package.json b/package.json
index 0df4c1ec0..33f22fea8 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.3",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",
diff --git a/src/formatDate.js b/src/formatDate.js
index 769e27661..c02162957 100644
--- a/src/formatDate.js
+++ b/src/formatDate.js
@@ -9,6 +9,39 @@
  */
 function formatDate(date, fromFormat, toFormat) {
   // write code here
+  const arrDate = date.split(fromFormat.at(-1));
+  const parts = {};
+  const resArr = [];
+
+  for (let i = 0; i < arrDate.length; i++) {
+    parts[fromFormat[i]] = arrDate[i];
+  }
+
+  for (let j = 0; j < arrDate.length; j++) {
+    if (
+      (fromFormat.includes('YYYY') && toFormat[j] === 'YY') ||
+      (fromFormat.includes('YY') && toFormat[j] === 'YYYY')
+    ) {
+      const changedYear = normalizeYear(parts, toFormat[j]);
+
+      resArr.push(changedYear);
+      continue;
+    }
+
+    resArr.push(parts[toFormat[j]]);
+  }
+
+  return resArr.join(toFormat.at(-1));
+}
+
+function normalizeYear(obj, targetYearFormat) {
+  if (targetYearFormat === 'YYYY') {
+    return obj.YY >= 30 ? '19' + obj.YY : '20' + obj.YY;
+  }
+
+  if (targetYearFormat === 'YY') {
+    return obj.YYYY.slice(-2);
+  }
 }
 
 module.exports = formatDate;

From c421015166eb3362d8865ea5f63bf3e148b06bb2 Mon Sep 17 00:00:00 2001
From: unknown <oleksa77199@gmail.com>
Date: Tue, 14 Jul 2026 23:17:58 +0300
Subject: [PATCH 2/2] Solution

---
 src/formatDate.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/formatDate.js b/src/formatDate.js
index c02162957..99f8dbbb4 100644
--- a/src/formatDate.js
+++ b/src/formatDate.js
@@ -17,7 +17,7 @@ function formatDate(date, fromFormat, toFormat) {
     parts[fromFormat[i]] = arrDate[i];
   }
 
-  for (let j = 0; j < arrDate.length; j++) {
+  for (let j = 0; j < toFormat.length - 1; j++) {
     if (
       (fromFormat.includes('YYYY') && toFormat[j] === 'YY') ||
       (fromFormat.includes('YY') && toFormat[j] === 'YYYY')
@@ -35,6 +35,10 @@ function formatDate(date, fromFormat, toFormat) {
 }
 
 function normalizeYear(obj, targetYearFormat) {
+  if (targetYearFormat !== 'YY' && targetYearFormat !== 'YYYY') {
+    throw new Error('Unsupported year format');
+  }
+
   if (targetYearFormat === 'YYYY') {
     return obj.YY >= 30 ? '19' + obj.YY : '20' + obj.YY;
   }