for-of-vs-for-loop

JavaScript performance comparison

Revision 17 of this test case created by Philip Chimento

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  this.vals = "x".repeat(1000).split("").map((_, i) => i);

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
map
let collected = this.vals.map(value => ({value}));
pending…
for-of
let collected = [];
for (let value of this.vals) {
  collected.push({value});
}
pending…
for-loop
let collected = [];
let {length} = this.vals;
let value = 0;

for (let i = 0; i < length; i++) {
  value = this.vals[i];
  collected.push({value});
}
pending…

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Revisions

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