Empty array

JavaScript performance comparison

Revision 196 of this test case created by npiguet

Preparation code

sourceArray = [];

for (i=0;i<100000;i++)
   sourceArray.push({a: 1, b: "2"});
      
<script>
Benchmark.prototype.setup = function() {
  var arr = sourceArray.slice();

};
</script>

Preparation code output

sourceArray = []; for (i=0;i<100000;i++) sourceArray.push({a: 1, b: "2"});

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
length
arr.length = 0;
pending…
splice
arr.splice(0, arr.length);
pending…
pop
while (arr.length > 0) {
  arr.pop();
}
pending…
shift
while (arr.length > 0) {
  arr.shift();
}
pending…
set empty
arr = [];
pending…

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Revisions

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sourceArray = []; for (i=0;i<100000;i++) sourceArray.push({a: 1, b: "2"});