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
Tests the difference between operations with cookies and reading from memory
<script>
var value = document.cookie;
var value2 = "ok";
if (value.length) {
localStorage.setItem("foo", document.cookie);
} else {
value = "abcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdefabcdef";
localStorage.setItem("foo", value);
document.cookie = value;
}
var value;
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Reading from cookie |
| ready |
Reading from a variable |
| ready |
Writing to cookie |
| ready |
Writing to a variable |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.