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Run results for: Array.prototype.concat vs spread operator - j

Compare the new ES6 spread operator with the traditional concat() method

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36
Chrome 88
Windows
Desktop
4 years ago
Test name Executions per second
Array.prototype.concat 6641851.0 Ops/sec
spread operator 10055689.0 Ops/sec
Tests:

  • Array.prototype.concat

    AخA
     
    var params = [ "hello", true, 7,1,2,3,'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a' ];
    var other = [ 1, 2 ].concat(params);

  • spread operator

     
    var params = [ "hello", true, 7,1,2,3,'a','a','a','a','a','a','a','a','a','a','a','a','a','a','a' ];
    var other = [ 1, 2, ...params ];