Run results for: Compare comparison with null or undefined (extended) - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

value != null

64.8M/s

typeof value == undefined

62.2M/s

value === undefined

56.6M/s

value == null

56.5M/s

value === null

56.1M/s

value !== null

56.0M/s

typeof value === undefined

55.5M/s

value === null || value === undefined

52.5M/s

value !== undefined

49.2M/s

value == undefined

48.4M/s

value != undefined

44.7M/s

value !== null && value !== undefined

42.6M/s

!_.isNil(value)

32.7M/s

_.isNil(value)

30.8M/s

View exact numbers

Test name	Executions per second
✓ value != null	64,812,236 Ops/sec
typeof value == undefined	62,180,620 Ops/sec
value === undefined	56,608,396 Ops/sec
value == null	56,480,736 Ops/sec
value === null	56,071,436 Ops/sec
value !== null	56,004,448 Ops/sec
typeof value === undefined	55,548,980 Ops/sec
value === null \|\| value === undefined	52,463,556 Ops/sec
value !== undefined	49,211,500 Ops/sec
value == undefined	48,415,744 Ops/sec
value != undefined	44,734,152 Ops/sec
value !== null && value !== undefined	42,629,112 Ops/sec
!_.isNil(value)	32,653,414 Ops/sec
_.isNil(value)	30,789,712 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js"></script>

Script Preparation code:

var value = { a: 123 }

Tests:

value == null
value == null
value == undefined
value == undefined
value === null
value === null
value === undefined
value === undefined
value === null || value === undefined
value === null || value === undefined
_.isNil(value)
_.isNil(value)
value != null
value != null
value != undefined
value != undefined
value !== null
value !== null
value !== undefined
value !== undefined
value !== null && value !== undefined
value !== null && value !== undefined
!_.isNil(value)
!_.isNil(value)
typeof value == undefined
typeof value == 'undefined'
typeof value === undefined
typeof value === 'undefined'