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
checks performance of the many types of case iterators in javascript.
<script>
var testObject = { 1: 10, 2: 18448, 3: 188888, 4: 166, 5: 1516, 6: 11105, 7: 1215, 8:1116, 9: 10, 10: 18448,
11: 10, 12: 18448, 13: 188888, 14: 166, 15: 1516, 16: 11105, 17: 1215, 18:1116, 19: 10, 20: 18448,
21: 10, 22: 18448, 23: 188888, 24: 166 };
var testArray = [10,18448,188888,166,1516,11105,1215,1116,10,18448,188888,166,1516,11105,1215,1116,10,18448,188888,166,1516,11105,1215,1116];
function Switch( x ) {
switch ( x ) {
case 1: return 10; break;
case 2: return 18448; break;
case 3: return 188888; break;
case 4: return 166; break;
case 5: return 1516; break;
case 6: return 11105; break;
case 7: return 1215; break;
case 8: return 1116; break;
case 9: return 10; break;
case 10: return 18448; break;
case 11: return 188888; break;
case 12: return 166; break;
case 13: return 1516; break;
case 14: return 11105; break;
case 15: return 1215; break;
case 16: return 1116; break;
case 17: return 10; break;
case 18: return 18448; break;
case 19: return 188888; break;
case 20: return 166; break;
case 21: return 1516; break;
case 22: return 11105; break;
case 23: return 1215; break;
case 24: return 1116; break;
}
}
function elseIf( x ) {
if ( x == 1 ) return 10;
else if ( x == 2 ) return 18448;
else if ( x == 3 ) return 188888;
else if ( x == 4 ) return 166;
else if ( x == 5 ) return 1516;
else if ( x == 6 ) return 11105;
else if ( x == 7 ) return 1215;
else if ( x == 8 ) return 1116;
else if ( x == 9 ) return 18448;
else if ( x == 10 ) return 188888;
else if ( x == 11 ) return 166;
else if ( x == 12 ) return 1516;
else if ( x == 13 ) return 11105;
else if ( x == 14 ) return 1215;
else if ( x == 15 ) return 1116;
else if ( x == 16 ) return 18448;
else if ( x == 17 ) return 188888;
else if ( x == 18 ) return 166;
else if ( x == 19 ) return 1516;
else if ( x == 20 ) return 11105;
else if ( x == 21 ) return 1215;
else if ( x == 22 ) return 1116;
else if ( x == 23 ) return 18448;
else if ( x == 24 ) return 188888;
}
function objects(x){
return testObject[x];
}
function arrays(x){
return testArray[x-1];
}
function ternary(x){
return x==1?10:x==2?18448:x==3?188888:x==4?166:x==5?1516:x==6?11105:x==7?1215:x==8?1116:15;
}
</script>var testObject = { 1: 10, 2: 18448, 3: 188888, 4: 166, 5: 1516, 6: 11105, 7: 1215, 8:1116, 9: 10, 10: 18448,
11: 10, 12: 18448, 13: 188888, 14: 166, 15: 1516, 16: 11105, 17: 1215, 18:1116, 19: 10, 20: 18448,
21: 10, 22: 18448, 23: 188888, 24: 166 };
var testArray = [10,18448,188888,166,1516,11105,1215,1116,10,18448,188888,166,1516,11105,1215,1116,10,18448,188888,166,1516,11105,1215,1116];
function Switch( x ) {
switch ( x ) {
case 1: return 10; break;
case 2: return 18448; break;
case 3: return 188888; break;
case 4: return 166; break;
case 5: return 1516; break;
case 6: return 11105; break;
case 7: return 1215; break;
case 8: return 1116; break;
case 9: return 10; break;
case 10: return 18448; break;
case 11: return 188888; break;
case 12: return 166; break;
case 13: return 1516; break;
case 14: return 11105; break;
case 15: return 1215; break;
case 16: return 1116; break;
case 17: return 10; break;
case 18: return 18448; break;
case 19: return 188888; break;
case 20: return 166; break;
case 21: return 1516; break;
case 22: return 11105; break;
case 23: return 1215; break;
case 24: return 1116; break;
}
}
function elseIf( x ) {
if ( x == 1 ) return 10;
else if ( x == 2 ) return 18448;
else if ( x == 3 ) return 188888;
else if ( x == 4 ) return 166;
else if ( x == 5 ) return 1516;
else if ( x == 6 ) return 11105;
else if ( x == 7 ) return 1215;
else if ( x == 8 ) return 1116;
else if ( x == 9 ) return 18448;
else if ( x == 10 ) return 188888;
else if ( x == 11 ) return 166;
else if ( x == 12 ) return 1516;
else if ( x == 13 ) return 11105;
else if ( x == 14 ) return 1215;
else if ( x == 15 ) return 1116;
else if ( x == 16 ) return 18448;
else if ( x == 17 ) return 188888;
else if ( x == 18 ) return 166;
else if ( x == 19 ) return 1516;
else if ( x == 20 ) return 11105;
else if ( x == 21 ) return 1215;
else if ( x == 22 ) return 1116;
else if ( x == 23 ) return 18448;
else if ( x == 24 ) return 188888;
}
function objects(x){
return testObject[x];
}
function arrays(x){
return testArray[x-1];
}
function ternary(x){
return x==1?10:x==2?18448:x==3?188888:x==4?166:x==5?1516:x==6?11105:x==7?1215:x==8?1116:15;
}Ready to run.
| Test | Ops/sec | |
|---|---|---|
| switch | | ready |
| if else | | ready |
| indexed arrays | | ready |
| object | | ready |
| ternary | | ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.