Benchmark: Compare null undefined speed

Script Preparation code:

var one = { a: 123, b: null }
var two = { a: 123, b: undefined }
var three = {a: 123}

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
explicit null check
explicit null non-check
explicit undefined check
explicit undefined non-check
implicit undefined check
implicit undefined non-check

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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/95.0.4638.54 Safari/537.36

Browser/OS: Chrome 95 on Mac OS X 10.15.7

Test name	Executions per second
explicit null check	15862390.0 Ops/sec
explicit null non-check	16000270.0 Ops/sec
explicit undefined check	16148540.0 Ops/sec
explicit undefined non-check	16019590.0 Ops/sec
implicit undefined check	16098290.0 Ops/sec
implicit undefined non-check	16109460.0 Ops/sec

Compare null undefined speed (version: 0)