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Run results for:
getElementsByClassName, For i, For of, For each, Some, Every, Map 2
getElementsByClassName, For i, For of, For each, Some, Every, Map
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=496030" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Browser:
Chrome 120
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
Test name
Executions per second
//1 For i
7414097.5 Ops/sec
//2 For of
4342773.0 Ops/sec
//3. for each
2208530.2 Ops/sec
// 4. some
2202337.5 Ops/sec
// 5. every
2199111.0 Ops/sec
//6. map
2191371.5 Ops/sec
Script Preparation code:
var newBody = document.createElement("div"); for (let i; i < 1000; i++) { var divAdded = document.createElement("div"); divAdded.classList.add("ggclass"); newBody.appendChild(divAdded); }
Tests:
for i
var case1 = document.getElementsByClassName("ggclass"); for (var i = 0; i < case1.length; i++) { // 반복할 내용 console.log(case1[i]); }
for of
var case1 = document.getElementsByClassName("ggclass"); for (var element of case1) { // 반복할 내용 console.log(element); }
forEach
var case1 = document.getElementsByClassName("ggclass"); Array.from(case1).forEach(function (element) { // 반복할 내용 console.log(element); });
some
var case1 = document.getElementsByClassName("ggclass"); Array.from(case1).some(function (element) { console.log(element); return false; });
every
var case1 = document.getElementsByClassName("ggclass"); var allSatisfy = Array.from(case1).every(function (element) { console.log(element); return true; // 조건을 만족하면 true, 아니면 false });
map
var case1 = document.getElementsByClassName("ggclass"); var newArray = Array.from(case1).map(function (element) { console.log(element); return 변환된값; });