for vs each

JavaScript performance comparison

Test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script>
Benchmark.prototype.setup = function() {
    var persons = ["mark", "trevor", "bethany", "tara", "balou", "tim","harry", "whale"];
};
</script>

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Testing in unknown unknown
Test Ops/sec
each
$.each(persons || [], function(index, person) {
  person = person;
});
pending…
for
for (var p = 0; p < persons.length; p++) {
  persons[p] = persons[p];
}
pending…

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