Benchmark: Flatten array .flat() vs destructuring

HTML Preparation code:

<script>
const array = [[1,2,3,4,5,6],[7,8,9,10,11,12],[13,14,15,16,17,18]]  
</script>

Tests:

flatten with `flat` array method
array.flat()
Flatten with destructuring
const newArray = [...array[0], ...array[1], ...array[2]]

Rendered benchmark preparation results:

Previous results

Test case name	Result
flatten with `flat` array method
Flatten with destructuring

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser/OS: Chrome 112 on Windows

Test name	Executions per second
flatten with `flat` array method	316773.9 Ops/sec
Flatten with destructuring	2578162.0 Ops/sec

Flatten array .flat() vs destructuring (version: 0)