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.
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https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
test the performance of the jquery map versus a native for loop map
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
testArray = new Array(100);
for (var i = 0; i < 100; i++) {
testArray[i] = i;
}
forMap = function(array, mapFunction) {
var newArray = new Array(array.length);
for (var i = 0,l=array.length; i < l; i++) {
newArray[i] = mapFunction(array[i]);
}
return newArray;
}
forMap2 = function(array, mapFunction) {
var newArray = [];
for (var i = 0,l=array.length; i < l; i++) {
newArray.push(mapFunction(array[i]));
}
return newArray;
}
whileMap = function(array, mapFunction) {
var i = array.length;
var newArray = new Array(i);
while (i--) {
newArray[i] = mapFunction(array[i]);
}
return newArray;
}
whileMap2 = function(array, mapFunction) {
var i = array.length;
var newArray = [];
while (i--) {
newArray.push(mapFunction(array[i]));
}
return newArray;
}
double = function(x) {
return x * 2;
}
Ready to run.
Test | Ops/sec | |
---|---|---|
jquery map |
| ready |
for loop map |
| ready |
for loop |
| ready |
array.map |
| ready |
while loop |
| ready |
while loop map |
| ready |
while loop map with array push |
| ready |
for loop map with array push |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.