Benchmark: undefined - MeasureThat.net

Script Preparation code:

const body = {a: 2, b: "skljadls"}
const {a, b, c} = body;

Tests:

is a undefined
a === undefined
typeof a === undefined
typeof a === undefined
typeof b === undefined
typeof b === undefined
b === undefined
b === undefined
c === undefined
c === undefined
typeof c === undefined
typeof c === undefined

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
is a undefined
typeof a === undefined
typeof b === undefined
b === undefined
c === undefined
typeof c === undefined

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Browser/OS: Chrome 97 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
is a undefined	0.0 Ops/sec
typeof a === undefined	1789995.0 Ops/sec
typeof b === undefined	1790914.0 Ops/sec
b === undefined	0.0 Ops/sec
c === undefined	0.0 Ops/sec
typeof c === undefined	1603261.0 Ops/sec