let vs var

JavaScript performance comparison

Revision 41 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';
  var i, j;
  for (i = 0; i < 1000; i++) {
    for (j = 0; j < 10; j++) {
      let lettest = 'foo bar baz';
    }
  }
})();
pending…
var
(function() {

  'use strict';
  var i, j;
  for (i = 0; i < 1000; i++) {
    for (j = 0; j < 10; j++) {
      var vartest = 'foo bar baz';
    }
  }
})();
pending…
let 2
(function() {

  'use strict';
  var i, j;
  let lettest;
  for (i = 0; i < 1000; i++) {
    for (j = 0; j < 10; j++) {
      lettest = 'foo bar baz';
    }
  }
})();
pending…

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