Run results for: Compare comparison with null or undefined

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/121.0.6167.66 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 121

Operating system: iOS 18.1

Device Platform: Mobile

Date tested: one year ago

value === null

13.8M/s

value == null

13.8M/s

value != null

13.0M/s

value !== null

12.3M/s

_.isNil(value)

7.0M/s

value == undefined

6.9M/s

value !== undefined

6.8M/s

value === undefined

6.8M/s

value != undefined

5.3M/s

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

4.5M/s

!_.isNil(value)

4.1M/s

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

3.7M/s

View exact numbers

Test name	Executions per second
✓ value === null	13,788,533 Ops/sec
value == null	13,764,810 Ops/sec
value != null	13,023,406 Ops/sec
value !== null	12,344,412 Ops/sec
_.isNil(value)	7,014,476 Ops/sec
value == undefined	6,855,218 Ops/sec
value !== undefined	6,819,186 Ops/sec
value === undefined	6,788,600 Ops/sec
value != undefined	5,335,652 Ops/sec
value === null \|\| value === undefined	4,511,088 Ops/sec
!_.isNil(value)	4,058,836 Ops/sec
value !== null && value !== undefined	3,727,964 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)