jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
jsperf.com URLs are mirrored at the same path, e.g:
https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
<script>
var query = "?pdq=wrong+search+value&q=my+search+query&value=55";
window.GetQueryString = function(q) {
return (function(a) {
if (a == "") return {};
var b = {};
for (var i = 0; i < a.length; ++i) {
var p = a[i].split('=');
if (p.length != 2) continue;
b[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));
}
return b;
})(q.split("&"));
};
window.getParameterByName = function(name) {
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regexS = "[\\?&]" + name + "=([^&#]*)";
var regex = new RegExp(regexS);
var results = regex.exec(window.location.href);
if (results == null) return "";
else return decodeURIComponent(results[1].replace(/\+/g, " "));
}
window.getParameterByName2 = function(name) {
var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
}
window.getParameterByName3 = function(n){
var half = location.search.split(n+'=')[1];
return half? decodeURIComponent(half.split('&')[0]):null;
}
window.getParameterByName4 = function(n){
var half = location.search.split('&'+n+'=')[1];
if (!half) half = location.search.split('?'+n+'=')[1];
return half? decodeURIComponent(half.split('&')[0]):null;
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Split method |
| ready |
Regex method |
| ready |
Another.... |
| ready |
simplest and faster but inaccurate! |
| ready |
Corrected "simplest" but slower! |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.