grep vs pure js

JavaScript performance comparison

Revision 6 of this test case created by

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
      
<script>
Benchmark.prototype.setup = function() {
  var me = {
    boards: [{
      id: 1
    }, {
      id: 2
    }, {
      id: 3
    }, {
      id: 4
    }, {
      id: 5
    }, {
      id: 6
    }, {
      id: 7
    }, {
      id: 8
    }, {
      id: 9
    }, {
      id: 10
    }]
  };

};
</script>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
jQuery
var getBoard1 = function(id) {
    return $.grep(me.boards, function(board) {
      return board.id == id;
    });
    };

getBoard1(5);
pending…
JS
for (var i = 0; i < me.boards.length; i++) {
  var board = me.boards[i];
  if (board.id == 5) return board;
}
pending…
native Array.filter
return me.boards.filter(function(e) {
  return e.id == 5
});
pending…
simple
for (var i = 0; i < me.boards.length; i++) {
  return me.boards[i].id == 5 ? true : false
}
pending…

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Revisions

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