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 measureBox(content) {
const box = document.createElement('div');
box.textContent = content;
document.body.appendChild(box);
const height = box.getBoundingClientRect().height;
document.body.removeChild(box);
return height;
}
const lazyMeasureBox = createLazyMeasureBox();
function createLazyMeasureBox() {
let boxRef;
return (content) => {
if (!boxRef) {
boxRef = document.createElement('div');
document.body.appendChild(boxRef);
setTimeout(() => {
if (boxRef) {
document.body.removeChild(boxRef);
boxRef = null;
}
});
}
boxRef.textContent = content;
const height = boxRef.getBoundingClientRect().height;
return height;
}
}
Ready to run.
Test | Ops/sec | |
---|---|---|
1 |
| ready |
2 |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.