Benchmark: push array elements using spread vs iteration

Script Preparation code:

var numSamples = 10000
var data = "TEST DATA"
var makeArray = len=> Array(len).fill(data)

Tests:

spread
var a = [] var b = makeArray(numSamples) a.push(...b)
iteration using forEach
var a = [] var b = makeArray(numSamples) b.forEach(it => a.push(it))
iteration using for
var a = [] var b = makeArray(numSamples) for (var i=0; i<b.length; i++) { a.push(b[i]) }
iteration using for...of
var a = [] var b = makeArray(numSamples) for (var it of b) { a.push(it) }

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 5 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

push array elements using spread vs iteration (version: 4)