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Run results for: Array.prototype.slice vs spread operator on a bigger array

Compare the new ES6 spread operator with the traditional slice() method on a bigger array.

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Chrome 131
Mac OS X 10.15.7
Desktop
5 months ago
Test name Executions per second
Array.prototype.slice 906220.6 Ops/sec
spread operator 120761.5 Ops/sec
Script Preparation code:
AخA
 
var array = Array(10000).fill(null)
Tests:

  • Array.prototype.slice

     
    var otherArray = array.slice();

  • spread operator

     
    var otherArray = [...array];