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
compare "".replace(/[&<>]/g ... against "".replace(_cachedRegex ...
<script>
var tagsToReplace = {
'&': '&',
'<': '<',
'>': '>'
};
var _regex = /[&<>]/g;
function replaceTag(tag) {
return tagsToReplace[tag] || tag;
}
function safe_tags_replace(str) {
return str.replace(_regex, replaceTag);
}
function safe_tags_replace2(str) {
return str.replace(/[&<>]/g, replaceTag);
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Using replace |
| ready |
Using replace (cached regex) |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.