From d9814c06bfd4ecdb1192a0002e79e08c37a1e0b8 Mon Sep 17 00:00:00 2001
From: Samuel Mannehed <samuel@cendio.se>
Date: Fri, 15 Jun 2018 11:59:28 +0200
Subject: [PATCH] Use string assignment operator instead of concat()

The assignment operator is a lot faster.
---
 core/websock.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/websock.js b/core/websock.js
index 0c52fd6d..8039fb80 100644
--- a/core/websock.js
+++ b/core/websock.js
@@ -105,7 +105,7 @@ Websock.prototype = {
         // Handle large arrays in steps to avoid long strings on the stack
         for (let i = 0; i < len; i += 4096) {
             let part = arr.slice(i, Math.min(i + 4096, len));
-            str = str.concat(String.fromCharCode.apply(null, part));
+            str += String.fromCharCode.apply(null, part);
         }
         return str;
     },