Run results for: string.includes vs string.indexOf vs regex.test(string) vs == vs ===

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1.1 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Equal

535.0M/s

Strict Equal

470.1M/s

regex

424.3M/s

indexOf

380.3M/s

includes

11.7M/s

View exact numbers

Test name	Executions per second
✓ Equal	535,005,024 Ops/sec
Strict Equal	470,092,128 Ops/sec
regex	424,270,048 Ops/sec
indexOf	380,344,416 Ops/sec
includes	11,725,476 Ops/sec

Script Preparation code:

var string = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.'

Tests:

indexOf
string.indexOf('ullamco')
includes
string.includes('ullamco')
regex
/ullamco/.test(string)
Equal
string == 'ullamco'
Strict Equal
string === 'ullamco'