Mutate vs Clone Array Of Same Type Of Primitives

JavaScript performance comparison

Test case created by lxe

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  let mutable = [];
  let immutable = [];

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Push
for (let i = 0; i < 1000; i++) {
  mutable.push(Math.random())
}
pending…
Concat
for (let i = 0; i < 1000; i++) {
  immutable = immutable.concat(Math.random())
}
pending…

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