Run results for: for vs do while 2

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

Benchmark engine: Benchmark.js

//1.case For i

7.4M/s

2 do while

330K/s

View exact numbers

Test name	Executions per second
✓ //1.case For i	7,414,124 Ops/sec
2 do while	330,155 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:

//1.case For i
var case1 = document.getElementsByClassName("ggclass"); for (var i = 0; i < case1.length; i++) { // 반복할 내용 console.log(case1[i]); }
2 do while
var case1 = document.getElementsByClassName("ggclass"); do { console.log(case1[i]); i++ } while (i < case1.length);