Run results for: for vs do while 2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

//1.case For i

4.8M/s

2 do while

158K/s

View exact numbers

Test name	Executions per second
✓ //1.case For i	4,789,710 Ops/sec
2 do while	157,629 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);