Run results for: var-let-const20

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 OPR/113.0.0.0

Browser: Opera 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

var

32.9M/s

const

32.9M/s

let

32.7M/s

View exact numbers

Test name	Executions per second
✓ var	32,946,934 Ops/sec
const	32,917,840 Ops/sec
let	32,665,852 Ops/sec

Script Preparation code:

function functionConst(arg) {
	const obj = {};
  	obj.fn = () => console.log(obj, arg);
  return obj;
}
function functionVar(arg) {
	var obj = {};
  	obj.fn = () => console.log(obj, arg);
  return obj;
}
 
function functionLet(arg) {
	let obj = {};
  	obj.fn = () => console.log(obj, arg);
  return obj;

}

Tests:

const
functionConst(Math.random())
let
functionLet(Math.random())
var
functionVar(Math.random())