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Run results for: concat string vs array push

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Chrome 67
Mac OS X 10.13.3
Desktop
6 years ago
Test name Executions per second
concat string 12104639.0 Ops/sec
array push 5249951.0 Ops/sec
Script Preparation code:
AخA
 
var arr = [];
var mxname = 'mxname';
Tests:

  • concat string

     
    'test string' + ' ' + mxname;

  • array push

     
    arr.push(mxname);