object literal vs contructor

JavaScript performance comparison

Test case created

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 unknown unknown
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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