Run results for: Fastest way to check if array have an element returning true or false - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Browser: Chrome 83

Operating system: Mac OS X 10.15.5

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
indexOf !==	83932130.0 Ops/sec
filter length > 0	30933470.0 Ops/sec
find !== undefined	5205379.0 Ops/sec
some	169861100.0 Ops/sec
! every	166526200.0 Ops/sec
lastIndexOf !== -1	44876840.0 Ops/sec

Website performance monitoring

Tests:

indexOf !==
[1,2, 3, 4, 5].indexOf(4) !== -1
filter length > 0
[1,2, 3, 4, 5].filter(a=> a ===4).length > 0
find !== undefined
[1,2, 3, 4, 5].find(a => a === 4) !== undefined
some
[1,2, 3, 4, 5].some( a => a === 4)
! every
![1,2, 3, 4, 5].every( a => a !== 4)
lastIndexOf !== -1
[1,2, 3, 4, 5].lastIndexOf(4) !== -1