Run results for: check navigator.language v2 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: one year ago

substring()

3.3M/s

substr()

3.3M/s

indexOf()

3.3M/s

test()

2.8M/s

=== || ===

1.7M/s

View exact numbers

Test name	Executions per second
✓ substring()	3,348,590 Ops/sec
substr()	3,312,025 Ops/sec
indexOf()	3,265,131 Ops/sec
test()	2,819,623 Ops/sec
=== \|\| ===	1,711,505 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)