如何通过JavaScript检测对contentEditable的支持？ [英] How do I detect support for contentEditable via JavaScript?

问题描述

我一直在寻找这个几天现在，到目前为止，我能找到的最好的是检查下面的列表。我真的不喜欢检查基于用户代理的支持，特别是因为它可以欺骗。我也听说过至少有一个实例，其中下面的列表不正确（如下所示）。

I've been searching for this for a couple of days now and so far, the best I can come up with is checking the list below. I really don't like to check for support based on User-Agent, especially since it can be spoofed. I've also heard of at least one instance where the list below is incorrect (noted below).

• 是Internet Explorer吗？ >
  
• 是WebKit吗？

• Is Internet Explorer?
• Is WebKit? (But I've read that mobile Safari doesn't support it)
• Is Opera?
• Is Gecko and version >= 1.9? (meaning Firefox 3 or later)

有更好的方法，或者这是测试支持的唯一方法？

Is there a better method based on testing for support directly via JavaScript, or is this pretty much the only way to test for support?

推荐答案

检查某个特性的最好方法是

The best way to check for a certain feature is to actually test for that feature on an element that you know should support it, like this:

if(element.contentEditable != null)
    // then it's supported

>

or

if(typeof(element.contentEditable) != 'undefined')
   // same thing.. but with typeof you can be more specific about the type of property you need to find

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