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
var packed_array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var holey_array1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
delete holey_array1[10];
var holey_array2 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
holey_array2[13] = 0;
var holey_array3 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, /* hole */, 10];
function packed_sum() {
var sum = 0;
for (var i = 0; i < packed_array.length; i++) {
sum += packed_array[i];
}
}
function holey_sum1() {
var sum = 0;
for (var i = 0; i < holey_array1.length; i++) {
sum += holey_array1[i];
}
}
function holey_sum2() {
var sum = 0;
for (var i = 0; i < holey_array2.length; i++) {
sum += holey_array2[i];
}
}
function holey_sum3() {
var sum = 0;
for (var i = 0; i < holey_array3.length; i++) {
sum += holey_array3[i];
}
}
Ready to run.
Test | Ops/sec | |
---|---|---|
Packed array sum |
| ready |
Holey array sum 1 |
| ready |
Holey array sum 2 |
| ready |
Holey array sum 3 |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.