Benchmark: Javascript unshift

Script Preparation code:

var testArray = [4,5,6,6,2,3,4,56,6,2,3,4,5,65,6,2,3,423,4,5,6,6,2,3,4,56,6,2,3,4,5,65,6,2,3,423,4,5,6,6,2,3,4,56,6,2,3,4,5,65,6,2,3,423]

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
Unshift
Spread

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:93.0) Gecko/20100101 Firefox/93.0

Browser/OS: Firefox 93 on Linux

Test name	Executions per second
Unshift	686515.8 Ops/sec
Spread	12.4 Ops/sec

Javascript unshift (version: 0)