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
Comparaison between angular.forEach and jQuery.each
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js"></script>
<script src=//cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.js></script>
<script>
// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
// Production steps of ECMA-262, Edition 5, 15.4.4.18
// Reference: http://es5.github.com/#x15.4.4.18
if (!Array.prototype.forEach) {
Array.prototype.forEach = function forEach(callback, thisArg) {
'use strict';
var T, k;
if (this == null) {
throw new TypeError("this is null or not defined");
}
var kValue,
// 1. Let O be the result of calling ToObject passing the |this| value as the argument.
O = Object(this),
// 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
// 3. Let len be ToUint32(lenValue).
len = O.length >>> 0; // Hack to convert O.length to a UInt32
// 4. If IsCallable(callback) is false, throw a TypeError exception.
// See: http://es5.github.com/#x9.11
if ({}.toString.call(callback) !== "[object Function]") {
throw new TypeError(callback + " is not a function");
}
// 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
if (arguments.length >= 2) {
T = thisArg;
}
// 6. Let k be 0
k = 0;
// 7. Repeat, while k < len
while (k < len) {
// a. Let Pk be ToString(k).
// This is implicit for LHS operands of the in operator
// b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
// This step can be combined with c
// c. If kPresent is true, then
if (k in O) {
// i. Let kValue be the result of calling the Get internal method of O with argument Pk.
kValue = O[k];
// ii. Call the Call internal method of callback with T as the this value and
// argument list containing kValue, k, and O.
callback.call(T, kValue, k, O);
}
// d. Increase k by 1.
k++;
}
// 8. return undefined
};
}
</script>
var testArray = Array.apply(null, {
length: 5000
}).map(Function.call, Math.random);
var testArray = [];
Ready to run.
Test | Ops/sec | |
---|---|---|
angular |
| ready |
jQuery |
| ready |
Array.prototype.forEach |
| ready |
regular loop |
| ready |
lodash foreach |
| ready |
array.map |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.