Develop Reference

listening event after id changing

I want to modify an Id of button 'B' when button 'A' is clicked, and listen to the click event of of 'B' using Jquery but my code doesn't work,
this is an example of my code:
$(function() {
$(".nuttonA").click(
function() {
$("#buttonB").attr("id","notButtonB");
});
$("#notButtonB").click(function(){
console.log(" notButtonB is clicked "); //show nothing
});
});

i think you need event delegation. try this:
$(function() {
$(".buttonA").click(
function() {
$("#buttonB").attr("id","notButtonB");
});
$( "body" ).on( "click", "#notButtonB",function(){
console.log(" notButtonB is clicked "); //show nothing
});
});

Currently what you are using is called a "direct" binding which will only attach to element that exist on the page at the time your code makes the event binding call.
You need to use Event Delegation using delegated-events approach when manipulation properties.
General Syntax
$(document).on('event','selector',callback_function)
Example
$(document).on('click', ".nuttonA", function(){
$("#buttonB").attr("id","notButtonB");
});
$(document).on('click', "#notButtonB", function(){
//Your code
});
In place of document you should use closest static container.

Second jQuery button click isn't firing

I am trying to do something ostensibly simple in jsfiddle and it is not working. Essentially I have an h1 html tag with class "me" and a button with class "poo". The first click works and my css color changes, however the second click does not work?
$(".poo").click(function(e){
e.preventDefault();
$(".me").css("color","green");
var haha = $("<button>Click Me!!!</button>");
$(this).after(haha);
$(haha).addClass("changer");
$(this).hide();
});
$(".changer").click(function(e){
e.preventDefault();
$(".me").css("color","black");
$(this).hide();
});

Bind the second click to the parent element:
$(document).on('click', '.changer', function() {
//function here
});

The changer click handler is bound before the element exists. Try using the $.on method instead.
http://api.jquery.com/on/
$('body').on('click', '.changer', function() {...})
This works because the event handler is bound to the document body, which already exists on the page. When there is a click anywhere in the body, jQuery will check if the clicked element matches the selector .changer and execute the callback if so.
Alternatively, you could just bind the $('.changer').click event within the first callback.

Update fiddle: http://jsfiddle.net/0yodg7gb/7/
$(".poo").click(function(e){
e.preventDefault();
$(".me").css("color","green");
var haha = $("<button>Click Me!!!</button>").addClass('changer');
$(this).after(haha);
$(haha).addClass("changer");
$(this).hide();
bindClick();
});
function bindClick(){
$(".changer").bind('click',function(e){
e.preventDefault();
$(".me").css("color","black");
$(this).hide();
});
}

Working with dynamic jQuery

I was wondering how to make this trigger work as I've tried all I can, but can't seem to find out the problem.
HTML
<div id="testFunc">Change AHref Class</div>
test
JavaScript
$(function () {
$("#testFunc").click(function () {
$('#testLink').removeClass("button");
$('#testLink').addClass("button2");
return false;
});
});
$(function () {
$(".button2").click(function () {
alert('test');
return false;
});
});
Somehow, the upon triggering testFunc which changes the source dynamically which causes the a href class to change from button to button2, it doesn't seem to register when i use button2 click.
Is there anyway to solve this?
Thanks!

Try .on()
Use Event Delegation.
$(document).on('click','.button2',function(){ code here });
Syntax
$( elements ).on( events, selector, data, handler );
Demo Working Fiddle , Problem Fiddle

Why doesn't this jQuery code work?

I have this jQuery code:
$(".topic_form").hide();
$("#edit_topics_link").click(function(e) {
e.preventDefault();
$(".topic_form").show();
$(this).hide();
$("<a href='#' id='done_link'>Done</a>").insertBefore(".topic_form");
});
$("#done_link").click(function(e) {
e.preventDefault();
$(this).remove();
$(".topic_form").hide();
$("#edit_topics_link").show();
});
The first half of the code does this: it hides a form when the page loads. Then when you click a link, it shows the form, hides the clicked link, and adds a new link. This works 100% fine.
The 2nd half of the code doesn't work. When you click the newly added link, it should remove it, show the old link, and re-hide the form. Nothing happens when I click the newly added link. Why is this? How can I fix it?

Because the element to which you're attaching the click-handler to doesn't exist at the time of the document's loading, there are no events attached. You should be able to use live() to fix this:
$("#done_link").live('click', function(e) {
e.preventDefault();
$(this).remove();
$(".topic_form").hide();
$("#edit_topics_link").show();
});
The .live() method is able to affect elements that have not yet been added to the DOM through the use of event delegation: a handler bound to an ancestor element is responsible for events that are triggered on its descendants.
You could also use delegate() on the ancestor element of the #done_link element:
$("#parentElementSelector').delegate('#done_link', 'click', function(e) {
e.preventDefault();
$(this).remove();
$(".topic_form").hide();
$("#edit_topics_link").show();
});
References:
live().
delegate().

The reason it doesn't work is that when you call the second part of the script the link doesn't exist yet. There are 2 ways to solve it. Either move the second part into the first part. That way the attachment of the event handler happens when the link exists:
$(".topic_form").hide();
$("#edit_topics_link").click(function(e) {
e.preventDefault();
$(".topic_form").show();
$(this).hide();
$("<a href='#' id='done_link'>Done</a>").insertBefore(".topic_form")
.click(function(e) {
e.preventDefault();
$(this).remove();
$(".topic_form").hide();
$("#edit_topics_link").show();
});
});
Or use the live method to assign the handler. The live method will watch the dom and whenever something with the selector you specified (in this case .topic_form) appears it will attach the event to it:
$(".topic_form").hide();
$("#edit_topics_link").click(function(e) {
e.preventDefault();
$(".topic_form").show();
$(this).hide();
$("<a href='#' id='done_link'>Done</a>").insertBefore(".topic_form");
});
$("#done_link").live('click', function(e) {
e.preventDefault();
$(this).remove();
$(".topic_form").hide();
$("#edit_topics_link").show();
});

Overriding default behaviour of anchor tags using jquery

I am trying to override the default behaviour of an anchor tag so i can load in a web page on my server into the exisiting div, rather than a new tab or window.
so far i have:
myContainer.click(function(){
event.preventDefault();
$('a').click(function(){
var link = $(this).attr('href');
myContainer.load(link);
});
});
In chrome i have to click the link twice before it does anything, in IE an FF it doesnt work at all and refreshes the page with the new link.
Any help is much appreciated.

Shouldn't it be just:
$('a').click(function(e) {
e.preventDefault();
myContainer.load(this.href);
});
Your code assigns a click handler inside a click handler. So the first click will attach the click handler to the link, and the second click (on the link) will execute the new click handler.
It seems you only need one click handler. If the links are added dynamically, you can use .on() (the successor of .live and .delegate):
myContainer.on('click', 'a', function(e) {
e.preventDefault();
myContainer.load(this.href);
});
// or
$(document).on('click', 'a', function(e) {
e.preventDefault();
myContainer.load(this.href);
});

you forgot to pass in event:
myContainer.click(function(event){
event.preventDefault();
$('a').click(function(){ var link = $(this).attr('href');
myContainer.load(link);
});
});
try to rearrange them:
myContainer.ready(function(){
$('a').click(function(event){
event.preventDefault();
var link = $(this).attr('href');
myContainer.load(link);
});
});