Benchmark: Array.from VS spreading for - MeasureThat.net

Script Preparation code:

var arr1000    = new Array(1000).fill(0).map((x) => Math.random())
var arr1000000 = new Array(1000000).fill(0).map((x) => Math.random())

Tests:

Array.from (1000 elements)
const valueFromArray = Array.from(arr1000)
spreading (1000 elements)
const valueFromSpreading = [...arr1000]
Array.from (1mil elements)
const valueFromArray = Array.from(arr1000000)
spreading (1mil elements)
const valueFromSpreading = [...arr1000000]

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.from (1000 elements)
spreading (1000 elements)
Array.from (1mil elements)
spreading (1mil elements)

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Windows

View result in a separate tab

Test name	Executions per second
Array.from (1000 elements)	77519.3 Ops/sec
spreading (1000 elements)	67710.6 Ops/sec
Array.from (1mil elements)	43.7 Ops/sec
spreading (1mil elements)	13.9 Ops/sec