jquery hover().addClass() problem

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南笙
南笙 2021-01-07 04:31

http://jsfiddle.net/aBaw6/2/

This demo does not add class when you hover a list item.

What am I doing wrong here?

$(\"li\").hover(
  function         


        
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4条回答
  • 2021-01-07 04:48

    While others noted the missing quotation mark, I'd note that you should really be doing this with CSS instead of javascript:

    http://jsfiddle.net/aBaw6/8/

    li:hover{
        color:green;
        font-size: 20px;
    }
    

    IE6 doesn't support this on a <li>, but you could wrap the content with an <a> and style that if support is needed.

    If you did use javascript, you could reduce your code like this:

    http://jsfiddle.net/aBaw6/7/

    $("li").hover( function (e) {
        $(this).toggleClass('hover', e.type === 'mouseenter');
    });
    
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  • 2021-01-07 04:49

    You Have Missed the quote '

       $("li").hover(
          function () {
            $(this).addClass('hover');
          },
          function () {
            $(this).removeClass("hover");
          }
        );
    
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  • 2021-01-07 05:00

    Your javascript syntax is incorrect

    $(this).addClass('hover);
    

    Should be:

    $(this).addClass('hover');
    

    You forgot to terminate the string.

    It works just fine with this change.

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  • 2021-01-07 05:09

    Your JavaScript was badly formed:

    $("li").hover(
      function () {
        $(this).addClass('hover);
      }, 
      function () {
        $(this).removeClass("hover");
      }
    );
    

    Should be:

    $("li").hover(
      function () {
        $(this).addClass('hover');
      }, 
      function () {
        $(this).removeClass('hover');
      }
      );
    

    If you click on the JS Lint button to the top of the screen it would've told you this (this isn't intended as a criticism, just a note for your future use of JS Fiddle).

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