setting properties

JavaScript performance comparison

Test case created

Preparation code

<script>
  var foo = {};
</script>

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Testing in unknown unknown
Test Ops/sec
normal
for (var i = 0; i < 1000; i++) {
 foo.bar = 3;
}
pending…
Object.setProperty
for (var i = 0; i < 1000; i++) {
 Object.defineProperty(foo, 'bar', {
  enumerable: true,
  writable: true,
  configurable: true,
  value: 3
 });
}
pending…
via []
for (var i = 0; i < 1000; i++) {
 foo['bar'] = 3;
}
pending…

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