object literal vs contructor

JavaScript performance comparison

Test case created by

Preparation code



      
<script>
Benchmark.prototype.setup = function() {
  var Construct = function (a,b) {
    this.a = a;
    this.b = b;
    this.c = a+b;
  }
  
  var literal = function (a,b) {
    return {a: a, b: b, c: a+b};
  }
  
  var items = [], i = 1000;
  while (i--) {items.push([Math.round(Math.random() * 1000000, 0).toString(16) , Math.round(Math.random() * 1000000, 0).toString(16)])}
  

};
</script>

Preparation code output

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
construct
for (var i = 0; i < 1000; i++) {
  var a = new Construct(items[i][0], items[i][1]);
}
pending…
literal
for (var i = 0; i < 1000; i++) {
  var a = literal(items[i][0], items[i][1]);
}
pending…

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