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Run results for: concat vs spread three arrays

Compare the spread operator with the concat() method

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Chrome 123
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
concat 5467685.5 Ops/sec
spread 7476074.0 Ops/sec
Script Preparation code:
AخA
 
var a = [1, 2, 3, 4, 5];
var b = [6, 7, 8, 9, 10, 11];
var c= [12, 13, 14, 15, 16];
Tests:

  • concat

     
    var res = [].concat(a, b, c);

  • spread

     
    var res = [...a, ...b, ...c];