diff --git a/src/arrayMethodSort.js b/src/arrayMethodSort.js
index 32363d0d..b2298162 100644
--- a/src/arrayMethodSort.js
+++ b/src/arrayMethodSort.js
@@ -4,8 +4,25 @@
  * Implement method Sort
  */
 function applyCustomSort() {
-  [].__proto__.sort2 = function(compareFunction) {
-    // write code here
+  [].__proto__.sort2 = function (compareFunction) {
+    for (let i = 0; i < this.length; ++i) {
+      for (let j = i + 1; j < this.length; ++j) {
+        let check = String(this[i]) > String(this[j]);
+
+        if (compareFunction) {
+          check = compareFunction(this[i], this[j]) > 0;
+        }
+
+        if (check) {
+          const temp = this[i];
+
+          this[i] = this[j];
+          this[j] = temp;
+        }
+      }
+    }
+
+    return this;
   };
 }