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 15576.4 Ops/sec
without let 5601.9 Ops/sec
Script Preparation code:
AخA
 
let i = 0;
Tests:
  • with let

    x
     
    let j = 0
    for(let x = 0; x < 100000; x++) {
        j++;
    }
  • without let

     
    i = 0;
    for(let x = 0; x < 100000; x++) {
        i++;
    }