Run results for: find faster - for vs find vs map vs foreach

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; SAMSUNG SM-N976N) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/17.0 Chrome/96.0.4664.104 Mobile Safari/537.36

Browser: Chrome Mobile 96

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
for	9601.9 Ops/sec
prototype.find	626896.2 Ops/sec
forEach	13908.8 Ops/sec
map	12859.0 Ops/sec

Script Preparation code:

var arr = []
let i = 0
let len = 1000
for(;i<len;i++) {
	arr.push(i)                
}

Tests:

for
let i = 0 let len = arr.length let foundIndex = -1 for(;i<len;i++) { if (arr[i] > 999){ return i } }
prototype.find
const found = arr.find(function(element) { return element > 999 })
forEach
let foundForEachIndex = -1 arr.forEach(function (item){ if (item[i] > 999){ foundForEachIndex = i return } })
map
let foundMapIndex = arr.map(item => { if (item[i] > 999){ return i } })

Run results for: find faster - for vs find vs map vs foreach

for

prototype.find

forEach

map