From 068e795a0946596791977a77a3a150a4cfcd5c06 Mon Sep 17 00:00:00 2001
From: kyrylomanko <kyrylo.manko@gmail.com>
Date: Mon, 21 Aug 2023 13:53:31 +0200
Subject: [PATCH] Solution added

---
 src/arrayMethodJoin.js | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/arrayMethodJoin.js b/src/arrayMethodJoin.js
index 3a62201c..4252f8d0 100644
--- a/src/arrayMethodJoin.js
+++ b/src/arrayMethodJoin.js
@@ -4,9 +4,20 @@
  * Implement method join
  */
 function applyCustomJoin() {
-  [].__proto__.join2 = function(separator) {
-    // write code here
+  [].__proto__.join2 = function(separator = ',') {
+    let str = '';
+
+    for (let i = 0; i < this.length; i++) {
+      if (this[i] !== undefined && this[i] !== null) {
+        str += this[i];
+      }
+
+      if (i !== this.length - 1) {
+        str += separator;
+      }
+    }
+
+    return str;
   };
 }
-
 module.exports = applyCustomJoin;