JavaScript获取没有任何库的元素类 [英] JavaScript getting an elements class without any libraries

问题描述

我想使用JavaScript获取元素的类属性的值。然而在这种特殊的情况下，我没有像YUI，jQuery等图书馆的奢侈，需要坚持的基础。

I would like to get the value of the class attribute for an element using JavaScript. However in this particular situation I don't have the luxury of library such as YUI, jQuery, etc. and need to stick to the basics.

具体来说，我循环

我试过：

var colClass = el.getAttribute（'class'）;

和

var colClass = el.class;

但两者似乎都不起作用。在上面的例子中， el 是从表的单元数组中设置的，例如 var el = document.getElementById（'myTable' y] .cells [y];

But neither seems to be working. In the above example, el is set from cells array of a table, such as var el = document.getElementById('myTable').rows[y].cells[y];

推荐答案

也许你应该尝试

var colClass = el.className

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