Benchmark: findIndex vs indexOf vs object property

Script Preparation code:

var arr = new Array(15000);
arr.fill('')
arr = arr.map(el => Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 8));
var foo = 'erjhfdjh';
arr[7500]=foo;
var obj = arr.reduce((acc,key,i)=>{acc[key]=i;return acc},{});

Tests:

indexOf
var index = arr.indexOf(foo);
findIndex
var index = arr.findIndex(o => o===foo);
object property
var index = obj[foo]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
indexOf
findIndex
object property

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 116 on Android

View result in a separate tab

Test name	Executions per second
indexOf	9665.4 Ops/sec
findIndex	242.3 Ops/sec
object property	937580.4 Ops/sec

findIndex vs indexOf vs object property (version: 0)

Comparing performance of: indexOf vs findIndex vs object property

Created: 3 years ago by: Registered User

Jump to the latest result

indexOf

findIndex

object property

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A