Run results for: unshift vs sort

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0

Browser: Firefox 83

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
unshift	1.4 Ops/sec
swapping	469.6 Ops/sec

Script Preparation code:

var arr = [...Array(10000)].map((_,i) => i)

Tests:

unshift
arr.forEach((v,i) => { console.log(v,i); arr.unshift(arr.splice(i,1).shift()) })
swapping
arr.sort((a,b) => (a === b) ? 0 : (a < b) ? 1 : -1)