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Run results for: Array.prototype.slice vs spread operator - large array 100000

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

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0
Firefox 135
Windows
Desktop
24 days ago
Test name Executions per second
Array.prototype.slice 37483.9 Ops/sec
spread operator 10565.3 Ops/sec
Script Preparation code:
AخA
 
var arr = Array.from({length: 10000}, () => Math.random())
Tests:

  • Array.prototype.slice

     
    var other =  arr.slice();

  • spread operator

     
    var other = [ ...arr ]