diff --git a/src/arrayMethodSort.js b/src/arrayMethodSort.js
index 32363d0d..b262d252 100644
--- a/src/arrayMethodSort.js
+++ b/src/arrayMethodSort.js
@@ -4,9 +4,32 @@
  * Implement method Sort
  */
 function applyCustomSort() {
-  [].__proto__.sort2 = function(compareFunction) {
-    // write code here
+  [].__proto__.sort2 = function (compareFunction) {
+    const arr = this;
+
+    for (let i = 0; i < arr.length; i++) {
+      for (let j = 0; j < arr.length - i - 1; j++) {
+        let result;
+
+        if (typeof compareFunction === 'function') {
+          result = compareFunction(arr[j], arr[j + 1]);
+        } else {
+          const a = String(arr[j]);
+          const b = String(arr[j + 1]);
+
+          result = a > b ? 1 : a < b ? -1 : 0;
+        }
+
+        if (result > 0) {
+          const temp = arr[j];
+
+          arr[j] = arr[j + 1];
+          arr[j + 1] = temp;
+        }
+      }
+    }
+
+    return this;
   };
 }
-
 module.exports = applyCustomSort;