MeasureThat.net

Run results for: Array.prototype.slice vs spread operator - objects 22

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

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36
Chrome 108
Linux
Desktop
2 years ago
Test name Executions per second
Array.prototype.slice 6.4 Ops/sec
spread operator 6.4 Ops/sec
Script Preparation code:
​x
 
    function fromNumberToObject(id = 0) {
      return {
        id,
        value: id + id,
        name: 'example',
      };
    }
    var list = [...Array(99999999).keys()].map(fromNumberToObject);
​
​
Tests:

  • Array.prototype.slice

     
    const test = list.slice();

  • spread operator

     
    const test = [...list];