From 5eb19a5b7f2ee2e196fc14a7bbcc16353019284a Mon Sep 17 00:00:00 2001
From: Behnam Rajabifard <b.rajabifard@gmail.com>
Date: Wed, 21 Jun 2017 12:00:20 +0430
Subject: [PATCH] Fix undeclared variable

Add `let` before `a` variable
---
 1-js/02-first-steps/07-operators/article.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/1-js/02-first-steps/07-operators/article.md b/1-js/02-first-steps/07-operators/article.md
index ff171ea0..5fc083b6 100644
--- a/1-js/02-first-steps/07-operators/article.md
+++ b/1-js/02-first-steps/07-operators/article.md
@@ -409,7 +409,7 @@ For example:
 
 ```js run
 *!*
-a = (1+2, 3+4);
+let a = (1+2, 3+4);
 */!*
 
 alert( a ); // 7 (the result of 3+4)