I have a piece of JQuery that creates a row in a table and in one of the cells there is an X that is surrounded by a class. When it is dynamically created and then clicked on the click listener does not fire.
Here is the code.
$('#add').click(function() {
$( '#table' ).append('<td class="x">X</td></tr>');
});
$('.x').click(function() {
alert('Fired');
});
Since the <td> element does not yet exist when you register your event handler, you have to use live() or delegate() for the handler to be triggered later:
$(".x").live("click", function() {
alert("Fired");
});
$(".x").live("click", function()
{
alert("Fired");
});
Live adds events to anything added later in the DOM as well as what's currently there.
Instead of
$('.x').click(function() {
alert('Fired');
});
Change to this
$('.x').live('click', function() {
alert('Fired');
});
It binds the click function to any created element with class x
You need to use the .live function for content that's dynamically generated.
so replace
$('.x').click(function() {
with
$('.x').live('click',function() {
You are first creating the listener to all .x elements (of which there are presumably zero), then later adding new .x elements.
There are two solutions: one is to use jQuery live, the other is to rewrite your code:
var xClickHandler = function() {
alert('Fired');
};
$('#add').click(function() {
$('#table').append(
$('<td class="x">X</td></tr>').click(xClickHandler);
);
});
Use live instead of click:
$('.x').live("click", function() {
alert('Fired');
});
The html you are appending to the table has a typo, you have missed out the beggining tr tag:
$('#add').click(function() {
$( '#table' ).append('<tr><td class="x">X</td></tr>');
});
$('.x').click(function() {
alert('Fired');
});
I think you need to use the live method. http://api.jquery.com/live/
$('.x').live('click', function() {
// Live handler called.
});
Related
$(".btn").click(function()
{
$(".content").append(
"<div class='randomDiv' id='1'></div>"
);
}
If above is "active" then I cannot:
$(".randomDiv").click(function()
{
alert($(this.attr("id")));
}
I've googled and found out that it is because JS is loaded before I append, but haven't found a solution how to "register after load" on JS.
Either:
Attach the event handler when you create the element
$(".btn").click(function() {
$("<div class='randomDiv' id='1'></div>")
.on("click", myFunction)
.appendTo(".content");
}
function myFunction() {
alert($(this.attr("id")));
}
… so the element does exist when you bind the event handler
Use a delegated handler
$(document).on("click", ".randomDiv", function () {
alert($(this.attr("id")));
});
… that captures all the click events as they bubble up the document and checks which elements they came from.
$(".content").on('click', '.randomDiv', function()
{
alert($(this.attr("id")));
}
$(".content") can be replaced with any existing parent item of randomDiv. Say content div is inside page-left div then above code can be written as
$(".page-left").on('click', '.randomDiv', function()
{
alert($(this.attr("id")));
}
Or even
$(document).on('click', '.randomDiv', function()
{
alert($(this.attr("id")));
}
which bind event to the document level in DOM
Depending upon the version of jQuery you should use live, delegate, bind or on function.
If you append the element dynamically then the normal click function wont work. Use
$(document).on("click",".randomDiv",function(event){
alert($(this).attr("id"));
});
I have a $(document).ready function that sets up listeners for certain elements. However, all of the #leave-ride elements are added dynamically.
Listeners:
$(document).ready(function() {
$("#post-ride").click(function() {
addRide(currentDriver, $(destinationInput).val(), $(originInput).val(), $(dateInput).val(), $(timeInput).val());
$.getScript("scripts/myRides.js", function() {});
});
$("#request-ride").click(function() {
requestRide(currentDriver, $(destinationInput).val(), $(originInput).val(), $(dateInput).val(), $(timeInput).val());
$.getScript("scripts/myRides.js", function() {});
});
$("#leave-ride").click(function() {
console.log("leave Ride");
leaveRide(currentDriver, $("leave-ride").closest("div").attr("id"));
$.getScript("scripts/myRides.js", function() {});
});
});
What do I need to do to get that listener to listen to dynamic content?
Yes, ready runs only once. You can use event delegation:
Take the element closest to the #leave-ride which is not loaded dynamically (document in extreme cases). Then attach the handler on it, and use #leave-ride as the selector for the delegated event.
Assuming a div having the id #container is that static element:
$('div#container').on('click', '#leave-ride', function(){…});
See also Event binding on dynamically created elements?
Use on, change your event declaration
$("#post-ride").click(function() {
to
$("body").on('click',"#post-ride",(function() {
Use .on()
Example:
$("#leave-ride").on('click', function() {
console.log("leave Ride");
leaveRide(currentDriver, $("leave-ride").closest("div").attr("id"));
$.getScript("scripts/myRides.js", function() {
});
});
In my code I have the following:
$(document).ready(function(){
$("input#Addmore").click(function(){
$('div#add_div').append("<a class='remove' href='#'>X</a>");
});
});
This code on click of add more button and I want to remove parent div of above added code on click of "X" by jquery. for that purpose i am using this code
$("a.remove").click(function(){
$(this).closest("div").remove();
});
But the code is not working because jQuery did not getting append anchor code. Can any one tell me the solution?
You need to delegate the event to the nearest static element. Try this:
$('#add_div').on('click', 'a.remove', function() {
$(this).closest("div").remove();
});
Or if you are using an older version of jQuery (less than 1.7) use delegate() like this:
$('#add_div').delegate('a.remove', 'click', function() {
$(this).closest("div").remove();
});
Try this
$('#add_div').delegate('a.remove', 'click', function() {
$(this).closest("div").remove();
});
Or you can try this:
$("input#Addmore").click(function(){
$("div#add_div").append("<a class='remove' href='javascipt:;' onclick='remove(this);return false' href='#'>X<br/></a>");
});
and here is remove function:
window.remove = function(obj)
{
$(obj).closest('div').remove();
}
see here : http://jsfiddle.net/Hvx2u/3/
I thought this would work, but whenever I click on the element with the class name of one and it changes to the class named two, I can't get the second event to work. What am I missing here?
//first event
$('.one').on('click', function () {
$('.one').attr('class', 'two');
});
//second event
$('.two').on('click', function () {
$('.two').attr('class', 'one');
});
You need to delegate the event to a static parent..
The problem is , because you seem to dynamically change the class you need to bind the event every single time you change the class.. So delegating it should remove this problem..
Also You can write this as a Single event..
$('body').on('click','.one' , '.two', function() {
if( $(this).hasClass('one'){
function1();
}
else if( $(this).hasClass('two'){
function2();
}
$(this).toggleClass('one two');
});
Why not more simple :) http://jsfiddle.net/XZeNE/1/ or this http://jsfiddle.net/4mJJe/
use API - toggleClass
Further HTML CHange Dmeo http://jsfiddle.net/vuLQK/1/
code
$('.one').on('click', function() {
$(this).toggleClass('two');
});
HTML change
$('.one').on('click', function() {
$(this).toggleClass(function(){
if($(this).hasClass('two'))
$(this).html('NOw its class two HTML HULK');
else
$(this).html('CLASS ONE HTML IRONMAN' );
return "two";
})
});
You should use .on to attach to one of the ancestors of the 2 elements and then use the selector argument to match the event target. The selectors won't match elements that aren't present when the handlers are bound.
$(function () {
$("#container").delegate(".one", "click", function () {
$(this).attr('class', 'two');
});
$("#container").delegate(".two", "click", function () {
$(this).attr('class', 'one');
});
})
Is there another in jquery to run a function at page load and at a keyup event instead of the way I'm doing it?
$(function() {
totalQty();
$("#main input").keyup(function() {
totalQty();
});
});
Disregarding live or delegate optimizations, you can trigger an event like this:
$(function() {
$("#main input").keyup(function() {
totalQty();
}).filter(":first").keyup(); //Run it once
});
No need for the filter if it's not on multiple elements, just leave it out in that case.
You can use $(document).ready event to run functions on load:
$(document).ready(function(){
/* your code here */
});
Here's what I would do (jQuery 1.4+ )
$(document).ready(function() {
totalQty();
$("#main").delegate("input","keyup",function() {
totalQty();
});
});
You could use $.live(), which does event delegation, which is MUCH more efficient than created an event listener for every single input tag...and then missing any dynamically created ones. Try the following:
$(document).ready(function() {
totalQty();
$('#main input').live('keyup', function() {
totalQty();
});
});