addclass

问题 I have a bunch of anchor tags inside a #container . I am selecting a random anchor tag with jQuery and adding an .active class to it. Then, when a user hovers over any of these anchor tags, the .active class gets removed from the one that currently has it: $("#container").find("a").eq(random).addClass("active"); $("#container a").hover(function() { $("container a.active").removeClass("active"); }); I want to add one more thing to this. If a user hovers NOT over any of the links inside the

问题 I have no code to start off with, because I'm not advanced in JQuery and this seems like advanced stuff here. I know how to add classes, hide elements and other sorts of things but this is a new thing for me here. Here's the problem. I have content being served via php and mysql. The content will all share the same class and will be listed five per page. I need to have each of the same classes to have an extra class added to them to give it a unique class. An example of what the html looks

问题 This jquery toggles two things. (1) A css class and (2) displaying a div. The toggle works great if I click outside the element (Menu Toggle), but if I click inside the element itself, the div toggles, but the css class won't. Why is that? Live preview at http://jsfiddle.net/aL7Xe/68/ I need the added css class to go away when clicking on "Menu Toggle" the second time. <div id="menuwrap"> <a href="#" id="menutoggle">Menu Toggle</a> <ul id="menucontainer"> <li><a href="#">One</a></li> <li><a

问题 I have a table (standard markup) with a radio select in each row. Once the radio is selected I'd like to highlight that . Sounds straight forward enough but I can't get it to trigger. Here's the markup: The Table Row: <tr> <td>some data</td> <td>some data</td> <td>some data</td> <td> <label class="label_radio"><input type="radio" name="ame" value="val" /></label> </td> </tr> This is the relevant part of the JS: (mods the label to sexify the radio button, that bit works, the bit doesn't): $('

问题 I've added a class via addClass. I have an onclick function for that added class. However jQuery ignores the click function I created for that class. I've tested it on JSFIDDLE here <style type="text/css"> .openInfo:hover{color:red} .closeInfo:hover{color:blue} </style> <div class="openInfo">OPEN</div> <script> $('.openInfo') //executes correctly .click(function() { $(this).text("CLOSE"); $(this).addClass('closeInfo'); $(this).removeClass('openInfo'); }); $('.closeInfo') //ignored .click

问题 I have an angularjs directive restricted to class. How can I add this by using addClass method in angularjs directive app.directive('number', function() { return { restrict: 'C', link: function () { } }; }); code <div id="test"></div> I know it is possible by using jQuery like the following. $( "#test" ).addClass( "number" ); Please help me in doing it by using angularjs 回答1: You don't need to use .addClass() angular provide ng-class directive to add class conditionally. ng-class="{number:

问题 How can I add a class to the row I'm adding in the datatable? If not possible, how can I use fnRowCallback or fnDrawCallback to change the class? oTable = $('#example').dataTable( { "bJQueryUI": true, "bSortClasses": false, "sDom":'T<"clear">', "sPaginationType": "full_numbers", "sDom": 'T<"clear"><"fg-toolbar ui-widget-header ui-corner-tl ui-corner-tr ui-helper-clearfix"lfr>t<"fg-toolbar ui-widget-header ui-corner-bl ui-corner-br ui-helper-clearfix"ip>', "fnRowCallback": function( nRow,

问题 I have the following HTML <div id="testID" class="test1"> <img id="testID2" class="test2" alt="" src="some-image.gif" /> </div> I basically want to get to #testID2 and replace .test2 class with .test3 class ? I tried jQuery('#testID2').find('.test2').replaceWith('.test3'); But this doesn't appear to work ? Any ideas ? 回答1: jQuery('#testID2').find('.test2').replaceWith('.test3'); Semantically, you are selecting the element with the ID testID2 , then you are looking for any descendent elements

问题 Please help. Why is the jquery addClass() not working with event.target ? I have made a code and it supposed to add class on the target when clicked, but it does not work, and it says, e.target.addClass is not a function. http://jsfiddle.net/Lq9G4/ CODE: <html lang="en"> <head> <meta charset="UTF-8"> <title>Class Test</title> <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script> <style> .big { font-size: 5em; } .small { font-size: 1em; } </style> </head> <body> <p>This is the

问题 I've built a slider where I can click the images and it moves forward. I'm am trying to add Next and Previous buttons but am having trouble. Any help is appreciated! Here is a demo of where I am... JSFiddle <div id="container"> <div class="next">Next</div> <div class="prev">Previous</div> <div id="image1" class="box">Orange</div> <div id="image2" class="box">Blue</div> <div id="image3" class="box">Green</div> <div id="image4" class="box">Red</div> <div id="image5" class="box">Yellow</div> <