Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Chrome 126
Mac OS X 10.15.7
Desktop
10 months ago
Test name Executions per second
with let 2913982.2 Ops/sec
without let 252340.8 Ops/sec
Script Preparation code:
AخA
 
let i = 0;
Tests:
  • with let

    x
     
    for(let x = 0; x < 1000; x++) {
        let j = 0
        j++;
    }
  • without let

     
    for(let x = 0; x < 1000; x++) {
        i++;
    }