JQuery map vs Javascript map vs For-loop [英] JQuery map vs Javascript map vs For-loop

问题描述

我正在实现一些自然适合地图的代码。但是，我在列表中有大量的对象，我将要迭代，所以我的问题是哪个是最好的方法：

I'm implementing some code that is a natural fit for map. However, I have a significant amount of objects in a list that I'm going to iterate through, so my question is which is the best way to go abou this:

var stuff = $.map(listOfMyObjects, someFunction())

var stuff = listOfMyObjects.map(someFunction())

或只是

var stuff = new Array(); 
for(var i = 0; i < listOfmyObjects.length; i++){
    stuff.push(someFunction(listOfMyObjects[i]));
}

推荐答案

后者（for循环）要快得多。我记得在某个地方看到了一个基准测试，但我似乎找不到链接。

The latter (for loop) is much faster. I remember seeing a benchmark somewhere but I can't seem to find the link.

如果性能确实是一个问题，那么我会使用for循环。它并没有真正掩盖代码。

If performance is really an issue then I would use the for loop. It doesn't really obscure the code that much.

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