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Why is the Jquery code fired more than once

I have a button that opens a modal from another page. One the modal is open if .myBtn is clicked the modal closes as expected and I get a click alert but when the open modal is pressed again I get 2 click alerts as the modal closes. Why is this and how can I keep all the elements in the dom 'working' but avoid the script being fired more than once? Many thanks.
Html
<button id="edit_credit" data-modal="myModal" class="btn btn-small btn-blue credit_btn">Open Modal</button>
Jquery
$(document).ready(function() {
//Open Modal
$('.credit_btn').on('click', function() {
$('.modal-container').load('modal_test.php',
function() {
$('#myModal').modal({show:true});
}
);
$(document).on("click", ".myBtn", function(){
alert('click');
});
});
});//End of doc
Modal_test.php (partial)
<button type="submit" id="btn" data-dismiss="modal" value="submit" class="btn btn-blue pull-right myBtn">
Save</button>
<button type="button" class="btn btn-red pull-left" data-dismiss="modal">Close</button>
</form>
</div><!-- /.modal-footer -->

Because of (see comments):
$('.credit_btn').on('click', function() {
// Everytime you click on .credit_btn
// ...
// You bind that event again (and again and again)
$(document).on("click", ".myBtn", function(){
alert('click');
});
});
You can safely bind that once outside your click-event-handling
$(document).ready(function() {
//Open Modal
$('.credit_btn').on('click', function() {
$('.modal-container').load('modal_test.php',
function() {
$('#myModal').modal({show:true});
}
);
});
$(document).on("click", ".myBtn", function(){
alert('click');
});
});
(although I would rename that class from 'myBtn' to 'closeModal' or something like that, be specific when you code ;) )

How to apply this html script in to jQuery?

I have a button that attribute data-toggle and data-target. This is the full button script:
<button style="width:50%; float:left" type="button" class="btn btn-info" id="btn_report" data-toggle="modal" data-target="#myModal">Detail</button>
This button opens a simple modal. The modal can also be closed by clicking outside the modal box. However, I'd like to have some rules in the button using jQuery.
$('#btn_report').on('click',function(e){
var dataSend = "some_data";
$.ajax({
type: "POST",
url: "some_function",
cache: false,
dataType : "json",
data: dataSend,
success: function(response) {
if(response){
$('#myModal').show();
}else{
alert("There are no data to be displayed"); return false;
}
}
})
});
With data-toggle and data-target, the modal is always be opened whenever I click the button. If I remove data-toggle and data-target and add $('#myModal').show();, the modal is not show up.
What I'd like to do is to open the modal, if there are data returned from ajax. If there aren't, the alert is fired.
The modal is simple like this:
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content" id="printMe">
<div class="modal-body"> Congrats, you have your data </div>
</div>
</div>
</div>

As you're using a Bootstrap modal you need to use modal('open'), not show(). Try this:
if (response) {
$('#myModal').modal('show');
} else {
alert("There are no data to be displayed");
}
Also note that the return is redundant as you can't return anything from within the asynchronous success handler function.

Add event.stopPropagation() in the click listener
$('#btn_report').on('click',function(e){
event.stopPropagation();
setTimeout(function() {
// ajax mock
$('#myModal').modal('show');
}, 2000);
});

Fire button click event when there are multiple classes on an element

How would I fire a button click event when a particular button is pressed (in this case the accept button).
I've tried the following but with little success:
Javascript
$('.notification-expand .Request .active-item > .accept-button').click(function () {
alert("hello");
});
HTML
<div class="notification-expand Request active-item" style="display: block;">
<div class="notification-body"></div>
<br>
<p>
<button type="button" class="btn btn-success accept-button btn-sm">Accept</button>
</p>
<div class="row">
<div class="col-xs-6 expand-col">
<button type="button" class="btn btn-warning barter-button btn-sm">Barter</button>
</div>
<div class="col-xs-6 expand-col">
<button type="button" class="btn btn-danger reject-button btn-sm">Reject</button>
</div>
</div>
</div>
Fiddle here

You have error in your selector , it should look like this:
$('.notification-expand.Request.active-item .accept-button').click(function () {
alert("hello");
});

You need to concatenate all classes without spaces to catch your target button
$('button.accept-button', '.notification-expand.Request.active-item').click(function () {
alert("hello");
});
See the updated snippet
Notice the syntax of ".className1.className2" instead of ".className1 .className2"

should be something like:
$('button.accept-button').click(function(){ ... });
there is really no need to go down the whole list if this is the whole code
----edit----
so when there are more items but only 1 active(i guess) then just target the active-item class:
$('div.active-item button.accept-button').click(function(){ ... });

try
$('.accept-button', $('.notification-expand.active-item')).click(function () {
alert("hello");
});
or
$('.notification-expand.active-item')).find('.accept-button').click(function () {
alert("hello");
});

Just give the button an id and reference back to that.
HTML
<button id="btnSubmitData"> Ok Button </button>
JQuery Code
$('#btnSubmitData').click(function(){ ... });
You can also have multiple button Ids bind to the same event:
$('#btnAccept, #btnReject, #btnWarning').click(function () {
alert("hello");
});
Take a look at the updated Working Fiddle.

How to reset the bootstrap modal when it gets closed and open it fresh again?

I have a list box in the bootstrap modal and a button.
When the button is clicked a new button gets rendered inside a div in the modal.
When I close the modal and reopen it, the last operation performed on the modal like the button rendered earlier is still present in the modal.
How do reset the modal so that when the modal is opened again, the button is not present and user can again select the option from the list box and click on the button to render a new button and so on.
<!-- Modal -->
<div
class="modal fade"
id="myModal"
tabindex="-1"
role="dialog"
aria-labelledby="myModalLabel"
aria-hidden="true"
>
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">
<span aria-hidden="true">×</span
><span class="sr-only">Close</span>
</button>
<h4 class="modal-title" id="myModalLabel">Select Language</h4>
</div>
<div class="modal-body">
<button type="button" class="btn" data-dismiss="modal">Close</button>
<button type="button" class="btn" id="submit_form">Submit</button>
<div class="modal-body1">
<div id="placeholder-div1"></div>
</div>
</div>
<div class="modal-footer">
<script>
$("#submit_form").on("click", function () {
$(".modal-body1").html("<h3>test</h3>");
});
</script>
<script>
$(function () {
$(".modal-footer").click(function () {
$(".modal").modal("hide");
});
});
</script>
</div>
</div>
</div>
</div>
-- Update ---
Why doesn't this work?
<script type="text/javascript">
$(function () {
$("#myModal").on("hidden.bs.modal", function (e) {
console.log("Modal hidden");
$("#placeholder-div1").html("");
});
});
</script>

Just reset any content manually when modal is hidden:
$(".modal").on("hidden.bs.modal", function(){
$(".modal-body1").html("");
});
There is more events. More about them here
$(document).ready(function() {
$(".modal").on("hidden.bs.modal", function() {
$(".modal-body1").html("Where did he go?!?!?!");
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
Launch modal
</button>
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span>
</button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
<div class='modal-body1'>
<h3>Close and open, I will be gone!</h3>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>

Tried it and working well
$('#MyModal').on('hidden.bs.modal', function () {
$(this).find('form').trigger('reset');
})
reset is dom build-in funtion, you can also use $(this).find('form')[0].reset();
And Bootstrap's modal class exposes a few events for hooking into modal functionality, detail at here.
hide.bs.modal This event is fired immediately when the hide instance
method has been called.
hidden.bs.modal This event is fired when the modal has finished being
hidden from the user (will wait for CSS transitions to complete).

What helped for me, was to put the following line in the ready function:
$(document).ready(function()
{
..
...
// codes works on all bootstrap modal windows in application
$('.modal').on('hidden.bs.modal', function(e)
{
$(this).removeData();
}) ;
...
..
});
When a modal window is closed and opened again, the previous entered and selected values, will be reset to the initial values.
I hope this will help you as well!

Try cloning, then removing and re-adding the element when the modal is hidden. This should keep all events, though I haven't thoroughly tested this with all versions of everything.
var originalModal = $('#myModal').clone();
$(document).on('#myModal', 'hidden.bs.modal', function () {
$('#myModal').remove();
var myClone = originalModal.clone();
$('body').append(myClone);
});

To reset all the input fields in a modal use the following.
$(".modal-body input").val("")

Here's an alternative solution.
If you're doing a lot of changes to the DOM (add/removing elements and classes), there could be several things that need to be "reset." Rather than clearing each element when the modal closes, you could reset the entire modal everytime it's reopened.
Sample code:
(function(){
var template = null
$('.modal').on('show.bs.modal', function (event) {
if (template == null) {
template = $(this).html()
} else {
$(this).html(template)
}
// other initialization here, if you want to
})
})()
You can still write your initial state in HTML without worrying too much about what will happen to it later. You can write your UI JS code without worrying about having to clean up later. Each time the modal is relaunched it will be reset to the exact same state it was in the first time.
Edit: Here's a version that should handle multiple modals (I haven't tested it)...
(function(){
$('.modal').on('show.bs.modal', function (event) {
if (!$(this).data('template')) {
$(this).data('template', $(this).html())
} else {
$(this).html($this.data('template'))
}
// other initialization here, if you want to
})
})()

(function(){
$(".modal").on("hidden.bs.modal", function(){
$(this).removeData();
});
});
This is perfect solution to remove contact while hide/close bootstrap modal.

That's works for me accurately
let template = null;
$('.modal').on('show.bs.modal', function(event) {
template = $(this).html();
});
$('.modal').on('hidden.bs.modal', function(e) {
$(this).html(template);
});

also, you can clone your modal before open ;)
$('#myModal')
.clone()
.modal()
.on('hidden.bs.modal', function(e) {
$(this).remove();
});

Reset form elements ( Works with bootstrap 5 as well). Sample code :
$(document).on("hidden.bs.modal", "#modalid", function () {
$(this).find('#form')[0].reset();
});

you can try this
$('body').on('hidden.bs.modal', '.modal', function () {
$(this).removeData('bs.modal');
});
It will remove all the data from the model and reset it.

I am using BS 3.3.7 and i have a problem when i open a modal then close it, the modal contents keep on the client side no html("") no clear at all. So i used this to remove completely the code inside the modal div.
Well, you may ask why the padding-right code, in chrome for windows when open a modal from another modal and close this second modal the stays with a 17px padding right.
Hope it helps...
$(document)
.on('shown.bs.modal', '.modal', function () {
$(document.body).addClass('modal-open')
})
.on('hidden.bs.modal', '.modal', function () {
$(document.body).removeClass('modal-open')
$(document.body).css("padding-right", "0px");
$(this).removeData('bs.modal').find(".modal-dialog").empty();
})

Sample code:
$(document).on('hide.bs.modal', '#basicModal', function (e) {
$('#basicModal').empty();
});

The below statements show how to open/reopen Modal without using bootstrap.
Add two classes in css
And then use the below jQuery to reopen the modal if it is closed.
.hide_block
{
display:none !important;
}
.display_block
{
display:block !important;
}
$("#Modal").removeClass('hide_block');
$("#Modal").addClass('display_block');
$("Modal").show("slow");
It worked fine for me :)

Using BS 3.3.7
$("#yourModal").on('hidden.bs.modal', function () {
$(this).data('bs.modal', null); // will clear all element inside modal
});

/* this will change the HTML content with the new HTML that you want to update in your modal without too many resets... */
var = ""; //HTML to be changed
$(".classbuttonClicked").click(function() {
$('#ModalDivToChange').html(var);
$('#myModal').modal('show');
});

Reset form inside the modal. Sample Code:
$('#myModal').on('hide.bs.modal', '#myModal', function (e) {
$('#myModal form')[0].reset();
});

To reset/clear all input fields from bootstrap modal use the following code:
$(".modal-body input").val("")
To hide/close bootstrap modal use the following code:
$('#yourModalId').modal('hide');
Keep Coding 😎

prevent bootstrap modal window from closing on form submission

Hi I'm using Bootstrap for the first time and I can't get my modal form to stay open on clicking the submit button.
I've searched SO but all related questions deal with slightly different issues (example below).
Disallow twitter bootstrap modal window from closing

Remove the following:
data-dismiss = "modal"
From the button that should not close the dialog. After that, you can close the dialog by using $( "#TheDialogID" ).modal( "hide" ). Example:
<!--<SimpleModalBox>-->
<div class="modal fade" id="SimpleModalBox" tabindex="-1" role="dialog" aria-labelledby="SimpleModalLabel" aria-hidden="true">
<!--<modal-dialog>-->
<div class = "modal-dialog">
<!--<modal-content>-->
<div class = "modal-content">
<div class = "modal-header">
<button type = "button" class = "close" data-dismiss = "modal">
<span aria-hidden="true">×</span>
</button>
<h4 class = "modal-title" id = "SimpleModalLabel">Title for a simple modal</h4>
</div>
<div id="TheBodyContent" class = "modal-body">
Put your content here
</div>
<div class = "modal-footer">
<button type = "button" class = "btn btn-default" data-dismiss = "modal">Yes</button>
<button type = "button" class = "btn btn-default" onclick="doSomethingBeforeClosing()">Don't close</button>
<button type = "button" class = "btn btn-default" data-dismiss = "modal">Cancel</button>
</div>
</div>
<!--<modal-content>-->
</div>
<!--/modal-dialog>-->
</div>
<!--</SimpleModalBox>-->
Javascript code:
//#region Dialogs
function showSimpleDialog() {
$( "#SimpleModalBox" ).modal();
}
function doSomethingBeforeClosing() {
//Do something. For example, display a result:
$( "#TheBodyContent" ).text( "Operation completed successfully" );
//Close dialog in 3 seconds:
setTimeout( function() { $( "#SimpleModalBox" ).modal( "hide" ) }, 3000 );
}
//#endregion Dialogs

look at => http://getbootstrap.com/2.3.2/javascript.html#modals
use
data-backdrop="static"
or
$("#yourModal").modal({"backdrop": "static"});
Edit1 :
on your link opening your modal ==>
yourModal
Edit2 :
http://jsfiddle.net/BVmUL/39/

This is how I did in my program, hope it helps.
This is the button which triggers the modal. Here I have disabled the keyboard and mouse click outside the modal.
<button type="button" data-toggle="modal" data-target="#modalDivId"
data-backdrop="static" data-keyboard="false">
This is the modal div, with a form and a submit button. Replace ... with your modal content.
<div class="modal fade" id="modalDivId" role="dialog">
<form>
...
<button type="submit" onClick="myFunction()" class="btn btn-success">
Submit
</button>
</form>
</div>
Finally the function which triggers when you click submit button. Here event.preventDefault(); will prevent the default action of form submit, so that the modal will remain.
function myFunction() {
$("form").on("submit", function (event) {
event.preventDefault();
$.ajax({
url: "yoururl",
type: "POST",
data: yourData,
success: function (result) {
console.log(result)
}
});
})
}

If you want to add multiple data and you want modal to stay open use
<button type="button"></button>
and If you want to close the modal after submitting data you must use
<button type="submit"></button>

I ran into the similar problem where I use modal as a form so I cannot initially set data-backdrop="static" data-keyboard="false" because I want the user to be able to close it as long as he has not submitted the form. Once he has submitted the form, I want to prevent him from closing the form modal. Here is how I can get around.
$('#modalForm').on('submit', function() {
$(#modal).on('hide.bs.modal', function ( e ) {
e.preventDefault();
})
});

Use this to prevent bootstrap modal window from closing on form submission
$( "form" ).submit(function( event ) {
event.preventDefault();
});

use below code only:-
$(document).ready(function () {
$("#myModal").modal('show');
});
and write your html code in update panel then remove data-dismiss="modal" from the button. Hope it works for you.