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
var div = document.createElement('div');
var templateDiv = document.createElement('div');
var key = 'key';
var value = '"constant"';
var QUOT = /"/g;
var attrCache = [];
function specialSet(el, attr, value) {
attr = '[' + attr + ']';
if (!attrCache[attr]) {
templateDiv.innerHTML = '<div ' + attr + '="">';
attrCache[attr] = templateDiv.firstChild.attributes[0].cloneNode();
}
attrCache[attr] = value;
el.attributes.setNamedItem(attrCache[attr])
}
Ready to run.
Test | Ops/sec | |
---|---|---|
setAttribute |
| ready |
setSpecialAttribute |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.