Run results for: concat string vs array push

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36

Browser: Chrome 52

Operating system: Windows 8.1

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
concat string	4808876.0 Ops/sec
array push	3478304.0 Ops/sec

Script Preparation code:

var arr = [];
var mxname = 'mxname';

Tests: