如何在JavaScript中避免单引号（'）？ [英] How to escape a single quote ( ' ) in JavaScript?

问题描述

好吧，我基本上这样做

  document.getElementById（something）。innerHTML =< img src ='something'onmouseover ='change（\'ex1\'）'/>; 
  

我不想要双引号（），我把\'我只想要一个单引号，所以我试图不把它放在一个双重的时候，我使用最终结果。

 < img src =somethingonmouseover =change（'ex1'）/> 
  

Escaping不适用于我。

更新：我标记的答案工作正常，但是，更清洁专业的方式，IMO）是这个答案： https://stackoverflow.com/a/16134953/1754890

解决方案

你应该总是考虑浏览器到底会看到什么，在这种情况下，它会看到这样：

 < img src ='something'onmouseover ='change（'ex1'）'/> 
  

换句话说，onmouseover属性只是更改（，而t这是另一个名为 ex1'）'的属性，没有价值。

事实是，HTML不使用 \ 为转义字符。但是它确实分别将& quot; 和&'/ code>识别为转义的引号和撇号。 >



使用这个知识：

  document.getElementById（something ）.innerHTML =< img src ='something'onmouseover ='change（& quot; ex1& quot））'/>; 
  

...这就是说，你可以使用JavaScript引号：

  document.getElementById（something）。innerHTML =< img src ='something'onmouseover ='change（\ex1\） '/>; 
  




Okay, I am basically doing this

document.getElementById("something").innerHTML = "<img src='something' onmouseover='change(\'ex1\')' />";

I don't want double quotes (") where I put the \'. I only want a single quote, so I am trying to not make it put a double when it is used. I am trying to reach this in the final outcome.

<img src="something" onmouseover="change('ex1')" />

Escaping isn't working for me.

UPDATE: My marked answer works fine, however, the cleaner (and more professional-looking way, IMO) is this answer: https://stackoverflow.com/a/16134953/1754890

解决方案

You should always consider what the browser will see by the end. In this case, it will see this:

<img src='something' onmouseover='change(' ex1')' />

In other words, the "onmouseover" attribute is just change(, and there's another "attribute" called ex1')' with no value.

The truth is, HTML does not use \ for an escape character. But it does recognise " and ' as escaped quote and apostrophe, respectively.

Armed with this knowledge, use this:

document.getElementById("something").innerHTML = "<img src='something' onmouseover='change(&quot;ex1&quot;)' />";

... That being said, you could just use JavaScript quotes:

document.getElementById("something").innerHTML = "<img src='something' onmouseover='change(\"ex1\")' />";

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