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 toPrefixedKeysReduce(obj, prefix) {
return Object.entries(obj).reduce((acc, [key, value]) => ({...acc, [`${prefix}${key}`]: value}), {});
}
function toPrefixedKeysForLoop(obj, prefix) {
const newObj = {};
for (const [key, value] of Object.entries(obj)) {
newObj[`${prefix}${key}`] = value;
}
return newObj;
}
Ready to run.
Test | Ops/sec | |
---|---|---|
reduce |
| ready |
reduce 2 |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.