let vs var

JavaScript performance comparison

Revision 5 of this test case created by

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
let
(function() {

  "use strict";
  let lettest = 'foo bar baz';

  for (let i = 0; i < 10; i++) {
    let x = i * i;
  }
})();
pending…
var
(function() {

  "use strict";
  var vartest = 'foo bar baz';

  for (var i = 0; i < 10; i++) {
    var x = i * i;
  }
})();
pending…

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