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Run results for: fill array with value: map(callback) vs fill(value)

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 16_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.0 Mobile/15E148 Safari/604.1
Mobile Safari 16
iOS 16.0
Mobile
2 years ago
Test name Executions per second
.map(callback) - 1 000 elements 495706.2 Ops/sec
.fill(value) - 1 000 elements 591959.2 Ops/sec
.map(callback) - 10 000 elements 73498.8 Ops/sec
.fill(value) - 10 000 elements 84284.5 Ops/sec
.map(callback) - 100 000 elements 6959.0 Ops/sec
.fill(value) - 100 000 elements 8237.8 Ops/sec
Script Preparation code:
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var array1000 = (new Array(1000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));
var array10000 = (new Array(10000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));
var array100000 = (new Array(100000)).map((e, i) => ({a: i, b: i, c: i, d: i, e: i, f: i, g: i, test: 'object'+ i}));
Tests:

  • .map(callback) - 1 000 elements

     
    const result = array1000.map(() => true);

  • .fill(value) - 1 000 elements

     
    const result = new Array(array1000.length).fill(true);

  • .map(callback) - 10 000 elements

     
    const result = array10000.map(() => true);

  • .fill(value) - 10 000 elements

     
    const result = new Array(array10000.length).fill(true);

  • .map(callback) - 100 000 elements

     
    const result = array100000.map(() => true);

  • .fill(value) - 100 000 elements

     
    const result = new Array(array100000.length).fill(true);