Run results for: Test script

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Make Array use Array from

5.4M/s

makeArray with Length

652K/s

Push Array

33K/s

View exact numbers

Script Preparation code:

var arrayLength = 1000;

Tests:

makeArray with Length
var arr = Array(arrayLength) arr.forEach((v,i) => { arr[i] = i; })
Push Array
var arr = [] for (let i = 0; i < arrayLength; i++) { arr[i] = i; }
Make Array use Array from
var arr = Array.from(arrayLength, () => {return null}) arr.forEach((v,i) => { arr[i] = i; })