Array unshift vs splice

JavaScript performance comparison

Test case created by Mike Petrovich

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var array = new Array(1e3);
  for (var i = 0, n = array.length; i < n; ++i) {
      array[i] = i;
  }

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Array.unshift
array.unshift(1234);
pending…
Array.splice
array.splice(0, 0, 1234);
pending…

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