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

Test name	Executions per second
indexOf	380344416.0 Ops/sec
includes	11725476.0 Ops/sec
regex	424270048.0 Ops/sec
Equal	535005024.0 Ops/sec
Strict Equal	470092128.0 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'

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

indexOf

includes

regex

Equal

Strict Equal