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
function isAlphaNumericA(char) {
const code = char.charCodeAt(0);
return (
(code >= 48 && code <= 57) || // 0-9
(code >= 65 && code <= 90) || // A-Z
(code >= 97 && code <= 122) // a-z
);
}
function isAlphaNumericB(char) {
return /[a-zA-Z0-9]/.test(char);
}
Ready to run.
Test | Ops/sec | |
---|---|---|
Char code |
| ready |
Regex |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.