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@bmizerany
Created April 11, 2016 18:38
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<script>
function ready() {
function benchmark(n, f) {
var sum = 0.0;
var total = n;
while (n--) {
var u = 'https://google.com?q=1' + Math.random().toString(36).substring(7);
var s = performance.now();
f(u);
var e = performance.now();
sum += (e - s);
}
var avg = sum / total;
document.write("<div>"+avg+"</div>");
}
var n = 10.0;
setTimeout(function() {
var a = document.createElement('a');
benchmark(n, function(u) {
a.href = u;
var h = a.hostname;
})
}, 1000);
setTimeout(function() {
var b = /^(?:\w+\:\/\/)?([^\/]+)(.*)$/;
benchmark(n, function(u) {;
var x = b.exec(u);
var h = x[1].split('?')[0];
});
}, 1000);
}
document.addEventListener("DOMContentLoaded", ready);
</script>
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