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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Browser: Chrome 109

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

===

2.5M/s

substring()

2.3M/s

indexOf()

2.3M/s

substr()

2.2M/s

test() 2

2.1M/s

test()

1.9M/s

=== || ===

1.1M/s

View exact numbers

Test name	Executions per second
✓ ===	2,528,683 Ops/sec
substring()	2,288,099 Ops/sec
indexOf()	2,267,568 Ops/sec
substr()	2,217,744 Ops/sec
test() 2	2,091,440 Ops/sec
test()	1,870,803 Ops/sec
=== \|\| ===	1,080,443 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)