Run results for: for i inside or outside var 3

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
inside var	7438942.5 Ops/sec
outside var	7438942.5 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:

inside var
var case1 = document.getElementsByClassName("ggclass"); for (var i = 0; i < case1.length; i++) { // 반복할 내용 console.log(case1[i]); }
outside var
var case1 = document.getElementsByClassName("ggclass"); var i=0; var case1length=case1.length; for ( i ; i < case1length; i++) { // 반복할 내용 console.log(case1[i]); }

Run results for: for i inside or outside var 3

inside var

outside var