Run results for: Index an element in array.

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:144.0) Gecko/20100101 Firefox/144.0

Browser: Firefox 144

Operating system: Windows

Device Platform: Desktop

Date tested: 9 months ago

Map.get Object

21.0M/s

Map.get

20.7M/s

Array.findIndex

8.4M/s

Array.indexOf Object

7.5M/s

Array.indexOf

7.1M/s

Array.findIndex Object

4.0M/s

View exact numbers

Test name	Executions per second
✓ Map.get Object	20,961,688 Ops/sec
Map.get	20,703,182 Ops/sec
Array.findIndex	8,372,764 Ops/sec
Array.indexOf Object	7,513,426 Ops/sec
Array.indexOf	7,091,876 Ops/sec
Array.findIndex Object	3,970,407 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

const array = Array.from({ length: 10 }, () => Math.random());
const arrayObject = Array.from({ length: 10 }, () => ({ value: Math.random() }));
const map = new Map();
const mapObject = new Map();
array.forEach((v, i) => map.set(v, i));
arrayObject.forEach((v, i) => map.set(v, i));
const testArray = _.shuffle(array);
const testArrayObject = _.shuffle(arrayObject);

Tests:

Array.indexOf
testArray.forEach(v => { const index = array.indexOf(v); });
Map.get
testArray.forEach(v => { const index = map.get(v) ?? -1; });
Array.findIndex
testArray.forEach(v => { const index = array.findIndex(vv => v === vv); });
Array.indexOf Object
testArrayObject.forEach(v => { const index = arrayObject.indexOf(v); });
Map.get Object
testArrayObject.forEach(v => { const index = mapObject.get(v) ?? -1; });
Array.findIndex Object
testArrayObject.forEach(v => { const index = arrayObject.findIndex(vv => v === vv); });