The jQuery event handlers always execute in the order they were bound. With jQuery, you can also change the sequence. Let’s see how, for example, fromdemo(1); demo(2);We can change the sequence to −demo(2); demo(1);ExampleYou can try to run the following to learn and change the sequence of jQuery events −Live Demo $(document).ready(function(){     $.fn.bindFirst = function(name, fn) {         this.on(name, fn);         this.each(function() {             var handlers = $._data(this, 'events')[name.split('.')[0]];             var handler = handlers.pop();       ... Read More

Use the jQuery on() method to bind jQuery events on elements generated through other events. You can try to run the following code to learn how to use on() method to bind jQuery events:ExampleLive Demo $(document).ready(function(){      $(document).on({        mouseenter: function (e) {          alert('mouse enter');        },        mouseleave: function (e) {          alert('mouse leave');       }           }, '.demo'); }); Heading 1 Demo One Demo Two Mouse enter and leave will generate alert boxes.

To suppress jQuery event handling temporarily, add a class to your element so that you can prevent further code from execution.ExampleYou can try to run the following code to learn how to suppress jQuery event handling −Live Demo $(document).ready(function(){     $(element).click(function(e) {         e.preventDefault();         // Check for fired class         if ($(this).hasClass('fired') == false) {           // Add fired class           $(element).addClass('fired');           // Remove fired class           $(element).removeClass('fired');           }    }); }); .fired {     font-size: 25px;     color: green; } This is a heading This is a paragraph. This is second paragraph.

Use the off() method to override jQuery event handlers. This method is used to remove an event handler. The on() method is used to attach one or more event handler.ExampleYou can try to run the following code to learn how to override jQuery event handlers −Live Demo           jQuery off() method                              $(document).ready(function() {             function aClick() {                $("div").show().fadeOut("slow");             }                             $("#bind").click(function () {                $("#theone").on("click", aClick).text("Can Click!");             });                             $("#unbind").click(function () {                $("#theone").off("click", aClick).text("Does nothing...");             });                          });                              button {              margin:5px;          }          button#theone {              color:red;              background:yellow;          }                             Does nothing...       Bind Click       Unbind Click               Click!                

Custom event means you can create your own events in jQuery. For example, create a custom event to fire an alert box on pressing any key on the keyboard.ExampleYou can try to run the following code to learn how to create a custom event,Live Demo $(document).ready(function(){    $('textarea').bind("enterKey",function(e){      alert("You have pressed Enter key!");    });    $('textarea').keyup(function(e){      if(e.keyCode == 13)      {         $(this).trigger("enterKey");      }    }); });  

To store and reproduce jQuery events, use console to log.ExampleYou can try to run the following code to learn how to store and reproduce jQuery events:Live Demo $(document).ready(function(){     window.events = []     $("#track").click(function(event){        window.events.push(event)            $.each(window.events, function(i, item){           console.log(i, item);        });    }); }); Track

Some of the jQuery events, do not bubble such as mouseenter do not bubble. Let us see an example of such events.ExampleYou can try to run the following code to learn how to work with jQuery events, which do not bubble,Live Demo  $(document).ready(function(){     $("p").mouseenter(function(){       $("p").css("background-color", "red");     });     $("p").mouseleave(function(){       $("p").css("background-color", "blue");     });  }); Demo Text - Keep the mouse pointer here.

stopPropogation() methodTo stop the bubbling of an event to parent elements, use the stopPropagation() method.ExampleYou can try to run the following code to learn how to work with stopPropogation() method:Live Demo           jQuery stopPropagation() method                              $(document).ready(function() {             $("div").click(function(event){                alert("This is : " + $(this).text());                                event.stopPropagation();             ... Read More

To prioritize jQuery events, use the event.stopPropagation().ExampleYou can try to run the following code to learn how to prioritize using stopPropogation() method:Live Demo $(document).ready(function(){        var timer;    function out(s) {       if (timer) {         clearTimeout(timer);         timer = null;       }       $("#demo").append(s + "");       timer = setTimeout(function() {         $("#demo").append("-------" + "");         timer = null;       }, 100);    }    $(".li").find('input').click(function(e){     out('li>input');     if ($(this).parent().hasClass("stop")) {         e.stopPropagation();     }    });    $(".li").click(function(e){     out('li');    });    $('input').click(function(e){     out('input');     if ($(this).parent().hasClass("stop")) {         e.stopPropagation();     }    }); }); Demo Demo using stop propagation method

The jQuery setTimeout() method is used to set an interval for events to fire.ExampleHere, we will set an interval of 3 seconds for an alert box to load using jQuery events:Live Demo $(document).ready(function(){     $("#button1").click(function(){        setTimeout("alert('Hello World!');", 3000);     }); }); Click Click the above button and wait for 3 seconds. An alert box will generate after 3 seconds.