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 src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
function trim12(str) {
var str = str.replace(/^\s\s*/, ''),
ws = /\s/,
i = str.length;
while (ws.test(str.charAt(--i)));
return str.slice(0, i + 1);
}
var stringTrim = String.prototype.trim;
String.prototype.trimNative = function(){
return this.replace(/^\s*/, '').replace(/\s*$/, '');
}
String.prototype.otherTrim = function(){
return this.replace(/^\s+|\s+$/g, '');
}
</script>
var test = new String(" hello world ");
Ready to run.
Test | Ops/sec | |
---|---|---|
jquery.trim 1.9.1 |
| ready |
String.prototype.trim |
| ready |
native String.prototype |
| ready |
Another Regex |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.