Front End Technology Articles - Page 725 of 745

To set the HTML content of an element, use the html() method. You can try to run the following code to get HTML content of an element using jQuery −ExampleLive Demo $(document).ready(function(){     $("#button1").click(function(){         $("#demo").html("This text is highlighted.");     }); }); This is a paragraph. Click to set HTML

To wrap multiple divs in one with jQuery, use the wrapAll() method. You can try to run the following code to wrap multiple divs in one with jQuery −ExampleLive Demo $(document).ready(function() {    $("#button1").click(function(){       $('.b,.c').wrapAll('');      }); }); .wrap {   color:blue; }  This is div 1  This is div 2  This is div 3 Wrap

To wrap two adjacent elements, loop through each myclass, add it to array and determining the next element has a .myclass. You can try to run the following code to learn how to wrap two adjacent elements in a containing div −ExampleLive Demo $(document).ready(function() {     var result = [];         $('.myclass').each(function() {         var box2 = $(this).next().hasClass('myclass');                 result.push($(this));                 if(!box2)         {             var container = $('');             container.insertBefore(result[0]);             for(x=0;x

The best way to add DOM elements with jQuery is to append the HTML string, using append() method. You can try to run the following code to insert DOM element −ExampleLive Demo           The jQuery Example                              $(document).ready(function() {             $("div").click(function () {                $(this).append('' );             });          });                              .div {             margin:10px;             padding:12px;             border:2px solid #666;             width:60px;          }                             Click on any square below to see the result:                                      

To select an element by name with jQuery, use the name element for the input field. You can try to run the following code to select element by name −ExampleLive Demo $(document).ready(function(){   $("#button1").click(function(){      var sname = jQuery("#form1 input[name=sub]").val();      alert(sname);   }); });   Subject Name: Get

To manipulate CSS pseudo elements using the hover() function. You can try to run the following code to learn how to manipulate CSS pseudo-elements −ExampleLive Demo $(document).ready(function(){     $('span').hover(function(){     $(this).addClass('change').attr('data-content','bar'); }); }); span.change:after {     content: attr(data-content) ' This is demo text.'; } Place cursor below... foo

Use the global error handler to receive a few of the parameters that jQuery can provide. After that add the suppressErrors: true.  You can try to run the following code to disable some jQuery global Ajax event handlers for a request:Live Demo $(document).ready(function(){   $("div.log").ajaxError(function(evt, xhr, settings) {     if(settings.suppressErrors) {         return;     }     $(this).text( "ajaxError handler is triggered" );  });    $("button.trigger").click(function() {     $("div.log").text('');     $.ajax("ajax/missing.html");  });  $("button.triggerSuppress").click(function() {     $("div.log").text('');     $.ajax( "ajax/missing.html", {         suppressErrors: true     });  }); }); Trigger (process errors) Trigger (won't process errors) Check log

Ajax requests produce a number of different events that you can subscribe to. There are two types of events:Local EventsThese are callbacks that you can subscribe to within the Ajax request object.$.ajax({    beforeSend: function(){       // Handle the beforeSend event    },    complete: function(){      // Handle the complete event    }    // ...... });Global EventsThese events are broadcast to all elements in the DOM, triggering any handlers which may be listening. You can listen for these events like so:$("#loading").bind("ajaxSend", function(){    $(this).show();  }).bind("ajaxComplete", function(){    $(this).hide(); });Global events can be disabled, for a ... Read More

To handle jQuery AJAX success event, use the ajaxSuccess() method. The ajaxSuccess( callback ) method attaches a function to be executed whenever an AJAX request completes successfully. This is an Ajax Event.Here is the description of all the parameters used by this method −callback − The function to execute. The event object, XMLHttpRequest, and settings used for that request are passed as arguments to the callback.Let’s say we have the following HTML content in result.html −THIS IS RESULT...ExampleThe following is an example showing the usage of this method −Live Demo           jQuery ajaxSuccess() method     ... Read More

To unbind jQuery events from a particular namespace, use the unbind() method. The event.namespace property is used to return the custom namespace when the event was triggered.ExampleYou can try to run the following code to learn how event namespace works and how you can unbind the jQuery events from a namespace −Live Demo $(document).ready(function(){     $("p").on("custom.myNamespace",function(event){         alert(event.namespace);     });     $("p").click(function(event){         $(this).trigger("custom.myNamespace");     });       $("button").click(function(){         $("p").off("custom.myNamespace");     }); });   Click me Click the button to remove namespace. Clicking the above button removes the namespace.