jQuery, use ~ as a part of id - how?

问题

In my application I have a form, which elements are named using a certain convention, i.e. they are paths, the parts of which are separated using the ~ sign.

Now I need to access one of them in jQuery by id, but I fail. Apparently, jQuery treats it as the #prev ~ sibling thing.

Is there a way I can sort of escape the ~ sign in the jQuery function?

Here is an example of what my code looks like:

<select id="a~b~c">
  <option value='1'>one</opiton>
</select>

<script>
  $("#a~b~c").change(function(){
    alert('a');
  });
</script>

回答1:

try this

  $("#a\\~b\\~c").change(function(){
    alert('a');
  });

回答2:

There is an answer to that in the official jQuery FAQ.

You need to escape it with \\.

回答3:

You can use \\ http://api.jquery.com/category/selectors/

$('#a\\~b\\~c')

Or, if escaping is problematic you can use: http://api.jquery.com/attribute-equals-selector/

$('[id="a~b~c"]')

Fiddle Demo

回答4:

The escape character in jQuery is two backslahses, \\, so try this:

$("#a\\~b\\~c").change(function(){    
    alert('a');
});

Fiddle to show it working

Further reading on jQuery selectors: http://api.jquery.com/category/selectors/

来源：https://stackoverflow.com/questions/8226331/jquery-use-as-a-part-of-id-how