xhr2 supported

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var client = new XMLHttpRequest();
};
</script>

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Testing in unknown unknown
Test Ops/sec
"onload" in
if ("onload" in client) {
  ; // Yes.
} else {
  ; // No.
}
pending…
onload !== "undefined"
if (typeof(client.onload) !== "undefined") {
  ; // Yes.
} else {
  ; // No.
}
pending…

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