diff --git a/src/arrayMethodSort.js b/src/arrayMethodSort.js
index 32363d0d..4b53f05f 100644
--- a/src/arrayMethodSort.js
+++ b/src/arrayMethodSort.js
@@ -4,8 +4,34 @@
  * Implement method Sort
  */
 function applyCustomSort() {
-  [].__proto__.sort2 = function(compareFunction) {
-    // write code here
+  [].__proto__.sort2 = function (compareFunction) {
+    
+    if (compareFunction !== undefined && typeof compareFunction !== 'function') {
+      throw new TypeError('The comparison function must be either a function or undefined');
+    }
+
+    const compare = compareFunction || function (a, b) {
+      const sA = String(a);
+      const sB = String(b);
+      if (sA < sB) return -1;
+      if (sA > sB) return 1;
+      return 0;
+    }
+
+    for (let i = 0; i < this.length; i++) {
+      for (let j = 0; j < this.length - 1 - i; j++) {
+        if (compare(this[j], this[j + 1]) > 0) {
+          const temp = this[j];
+          this[j] = this[j + 1];
+          this[j + 1] = temp;
+        }
+      }
+    }
+    return this;
+  };
+
+  [].__proto__.sort = function(compareFunction) {
+    return this.sort2(compareFunction);
   };
 }