javascript this.class 与 this.getAttribute('class')
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this.class vs. this.getAttribute('class')
提问by pwerth
I have a radio button, and when it is pressed a function is called, which accepts the class of the button as an argument. So something like this:
我有一个单选按钮，当它被按下时，一个函数被调用，它接受按钮的类作为参数。所以像这样：
<input class="myclass" type="radio" name="name" value="x" checked="true" onClick="myFunction(this.value, this.getAttribute('class'))"></input>
Notice that in my onClick, I have this.getAttribute('class')instead of simply this.class. I tried using this.class but I kept getting undefined. Is this.classnot an acceptable thing to do? I have used this.idelsewhere in my code which works fine, but for some reason I need to use getAttributewhen I want to reference class.
请注意，在我的 onClick 中，我有this.getAttribute('class')而不是简单的this.class. 我尝试使用 this.class，但我一直得到undefined. 是this.class不是一件可以接受的事情？我this.id在我的代码中的其他地方使用过它工作正常，但由于某种原因，getAttribute当我想引用类时需要使用。
So essentially I am asking what is the difference between this.classand this.getAttribute('class')?
所以基本上我在问this.class和之间有什么区别this.getAttribute('class')？
采纳答案by E. Sundin
Use className to get the current value of the class attribute. I think the reason behind this is because class is a reserved word.
使用 className 获取类属性的当前值。我认为这背后的原因是因为 class 是一个保留字。
回答by Suchit kumar
There is no this.class. i think you mean this.className.
see this:
没有this.class。我想你的意思是this.className。看到这个：
getAttribute("class")is more universal, because it can be used in different types of documents. In XML documents, most importantly. Including SVG.
getAttribute("class")更通用，因为它可以用于不同类型的文档。在 XML 文档中，最重要的是。包括SVG。
this.classNameworks only in HTML
this.className仅适用于 HTML
