Benchmark: Array.from() vs new Array() vs push vs [i] pushup - MeasureThat.net

Tests:

new Array()
new Array(500).fill("push-up", 0, 500)
Array.from()
Array.from({ length: 500 }, () => "push-up")
push
let array = []; for (let i = 0; i < 500; i++){ array.push("push-up") }
[i]
let array = []; for (let i = 0; i < 500; i++){ array[i] = "push-up" }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
new Array()
Array.from()
push
[i]

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Windows

View result in a separate tab

Test name	Executions per second
new Array()	546069.5 Ops/sec
Array.from()	28793.0 Ops/sec
push	454521.4 Ops/sec
[i]	374832.4 Ops/sec

Related benchmarks: