Run results for: JS Find vs FindIndex vs loop

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Firefox/150.0

Browser: Firefox 150

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

loop

21K/s

FindIndex

18K/s

Find

18K/s

View exact numbers

Test name	Executions per second
✓ loop	20,983 Ops/sec
FindIndex	18,352 Ops/sec
Find	17,751 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:

Find
var tempResult = !!Math.round(Math.random()) ? hasZero.find(v => v === 0) : withoutZero.find(v => v === 0);
FindIndex
var tempResult = !!Math.round(Math.random()) ? hasZero.findIndex(v => v === 0) : withoutZero.findIndex(v => v === 0);
loop
var index = 0; var tempResult = null; if (!!Math.round(Math.random())) { for (let item of hasZero) { if (item == 0) { tempResult = index; break; } else index++; } } else { for (let item of withoutZero) { if (item == 0) { tempResult = index; break; } else index++; } }