Prefer Built in Methods

JavaScript performance comparison

Test case created by BretCameron

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  function map(arr, func) {
    const mapArr = [];
    for(let i = 0; i < arr.length; i++) {
      const result = func(arr[i], i, arr);
      mapArr.push(result);
    }
    return mapArr;
  };
  
  const arr = [...Array(100)].map(e=>~~(Math.random()*100));

};
</script>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Our JavaScript map implementation
map(arr, el => el * 2);
pending…
The built-in Array.protoype.map
arr.map(el => el * 2);
pending…

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Revisions

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