Run results for: Some vs. Filter vs. indexOf

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.167 Safari/537.36

Browser: Chrome 64

Operating system: Mac OS X 10.12.6

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
Array.some	12210.9 Ops/sec
Array.filter	23900.9 Ops/sec
Array.indexOf	122926.6 Ops/sec
Array.lastIndexOf	147566.8 Ops/sec

Script Preparation code:

var hasZero = [];
var withoutZero = [];
for (var i = 0; i < 10000; i++) {
  hasZero.push(Math.floor(Math.random() * 1000));
  withoutZero.push(Math.floor(Math.random() * 1000) + 1)
}

Tests:

Array.some
var tempResult = !!Math.round(Math.random()) ? hasZero.some(v => v === 0) : withoutZero.some(v => v === 0);
Array.filter
var tempResult = !!Math.round(Math.random()) ? hasZero.filter(v => v === 0) : withoutZero.filter(v => v === 0);
Array.indexOf
var tempResult = !!Math.round(Math.random()) ? hasZero.indexOf(0) > -1 : withoutZero.indexOf(0) > -1;
Array.lastIndexOf
var tempResult = !!Math.round(Math.random()) ? hasZero.lastIndexOf(0) > -1 : withoutZero.lastIndexOf(0) > -1;

Run results for: Some vs. Filter vs. indexOf

Array.some

Array.filter

Array.indexOf

Array.lastIndexOf