Run results for: check navigator.language v4 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
indexOf()	3278089.2 Ops/sec
substr()	3254465.8 Ops/sec
test()	2844087.0 Ops/sec
=== \|\| ===	1624196.2 Ops/sec
substring()	3239415.0 Ops/sec
===	3296522.2 Ops/sec
test() 2	2750311.2 Ops/sec

Tests:

indexOf()
!navigator.language.indexOf('ru')
substr()
'ru'===navigator.language.substr(0,2)
test()
/^ru/.test(navigator.language)
=== || ===
navigator.language==='ru'||navigator.language==='ru-RU'
substring()
'ru'===navigator.language.substring(0,2)
===
navigator.language==='ru-RU'
test() 2
/^ru-?/.test(navigator.language)