MeasureThat.net

Run results for: array concat vs spread create new array

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0
Firefox 83
Ubuntu
Desktop
4 years ago
Test name Executions per second
spread 862494.4 Ops/sec
concat 1337704.4 Ops/sec
Tests:

  • spread

    AخA
     
    var a = [1,2,3];
    var b = [4,5,6];
    var c = [...a, ...b]

  • concat

     
    var a = [1,2,3];
    var b = [4,5,6];
    var c = a.concat(b);