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

Test name	Executions per second
value == null	13764810.0 Ops/sec
value == undefined	6855218.0 Ops/sec
value === null	13788533.0 Ops/sec
value === undefined	6788600.5 Ops/sec
value === null \|\| value === undefined	4511088.0 Ops/sec
_.isNil(value)	7014475.5 Ops/sec
value != null	13023406.0 Ops/sec
value != undefined	5335652.0 Ops/sec
value !== null	12344412.0 Ops/sec
value !== undefined	6819185.5 Ops/sec
value !== null && value !== undefined	3727963.5 Ops/sec
!_.isNil(value)	4058836.5 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)

Run results for: Compare comparison with null or undefined

value == null

value == undefined

value === null

value === undefined

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

_.isNil(value)

value != null

value != undefined

value !== null

value !== undefined

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

!_.isNil(value)