task solved

.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

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",

src/arrayMethodSort.js

@@ -4,8 +4,43 @@
  * Implement method Sort
  */
 function applyCustomSort() {
-  [].__proto__.sort2 = function(compareFunction) {
-    // write code here
+  [].__proto__.sort2 = function (compareFunction) {
+    let sortFunction = compareFunction;
+    const records = this.map((item, i) => {
+      return { val: item, key: String(item), ind: i };
+    });
+
+    const defaultComparator = (a, b) => {
+      if (a > b) {
+        return 1;
+      }
+
+      if (a < b) {
+        return -1;
+      }
+
+      return 0;
+    };
+
+    if (sortFunction === undefined) {
+      sortFunction = defaultComparator;
+    }
+
+    for (let i = 0; i < records.length; i++) {
+      for (let j = 0; j < records.length - 1 - i; j++) {
+        const result = sortFunction(records[j].key, records[j + 1].key);
+
+        if (result > 0) {
+          [records[j], records[j + 1]] = [records[j + 1], records[j]];
+        }
+      }
+    }
+
+    for (let i = 0; i < records.length; i++) {
+      this[i] = records[i].val;
+    }
+
+    return this;
   };
 }