Run results for: For let vs for var

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

Browser: Chrome 91

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
for let	32212.0 Ops/sec
for var	31601.4 Ops/sec

Script Preparation code:

function doSomethingWith(i) {
}

AخA
 
function doSomethingWith(i) {}

Tests:

for (let i = 0; i < 500; ++i) {
    doSomethingWith(i);
}

 
for (let i = 0; i < 500; ++i) {    doSomethingWith(i);}

for (var i = 0; i < 500; ++i) {
    doSomethingWith(i);
}

 
for (var i = 0; i < 500; ++i) {    doSomethingWith(i);}