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How to trigger bootstrap modal just once and using browser localstorage to detect the modal was triggered already

Here is my bootstrap modal code
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModalCenter">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModalCenter" tabindex="-1" role="dialog" aria-labelledby="exampleModalCenterTitle" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalCenterTitle">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
ok so the content goes here good good
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
and the javascript code to trigger after 2 seconds once the page is loaded
$(window).ready(function() {
setTimeout(function(){
$('#exampleModalCenter').modal('show');
}, 2000);
});
I'm looking for a code to trigger this function just once for a user and not to keep repeating each time when they visit the page again.
So, i have decided to use browser localstorage method to save this event and detect again whether it was already triggered or not.
I'm open for suggestions, if there is any better way to do this.
Thanks.

ohk so you want to save trigger status in localStorage...
$(document).ready(() => {
console.log(window.localStorage.modal);
if (window.localStorage.modal != "true") {
setTimeout(function(){
$("#exampleModalCenter").modal('show');
window.localStorage.modal = true;
}, 2000);
}
})
This code will check first if the modal value exist or modal value is false which in first case condition will be true so modal will be visible and localstorage modal value will be true. After that for other cases it will not trigger because modal value !== true condition.
note - but if they clear the localstorage it will not be able to help you.

Getting modal to show within called vue method

Not sure whats going on here but when I click the button calling a function it won't show my modal.
The function call itself works because the commented out alert will show if I uncomment it. How do I need to be showing the modal within this method?
No errors in the console either
<button #click="eventClick"></button>
<div id="example-modal">
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
hihi
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
</div>
eventClick: function(e) {
var eventObj = e.event;
//alert('Clicked ' + eventObj.title);
let element = this.$refs.modal.$el;
$(element).modal('show');

It's hard to tell based on the code presented. The modal ref isn't defined.
In general, you really don't want to mix JQuery into Vue - especially when JQuery is modifying the state of a component (in this case the visual state: shown/not shown).
The preferred way to render a modal is with a standard v-if, as shown in this example.

Bootstrap 3: prevent modal inside modal to trigger (hidden.bs.modal) every time

I have one modal inside another modal and I've managed to make the inner one close without affecting the other. The problem is that when the second modal is closed it triggers the 'hidden.bs.modal' event for its self and for the first modal.
<!-- My Html -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Open demo modal</button>
<div class="modal" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="false">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">Demo Modal</h4>
</div>
<div class="modal-body">
<p>
Upload image
</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
<div class="modal" id="uploadImage" tabindex="-1" role="dialog" aria-labelledby="uploadImage-title" aria-hidden="true">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="uploadImage-title">Upload new image</h4>
</div>
<div class="modal-body">
Testing Area
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" id="btnUploadCancel">Cancel</button>
<button type="button" class="btn btn-success">Accept</button>
</div>
</div>
</div>
</div>
</div>
<!-- My JS-->
$('#btnUploadCancel').click(function () {
$('#uploadImage').modal('toggle');
});
$(document).on('hidden.bs.modal', '#myModal', function () {
alert("hello");
});
$(document).on('hidden.bs.modal', '#uploadImage', function () {
alert("goodbye");
});
Here is a jsFiddle example that I made.
The reason for this question is that I need to trigger an action only when the second modal gets hidden and then something else when the first one gets hidden. Any ideas on how to fix this using the event for each of them???
Note: The second modal has to be inside the other as they are called as a partial view.

I'm guessing that these modal elements are being introduced to the page asynchronously, and that's why you're using a delegated event listener bound to the document rather than binding hidden.bs.modal directly to #myModal and #uploadImage themselves. If this is not the case, and you can get away with binding directly, I'd suggest using this approach to catch the hidden event on #uploadImage itself, and prevent it from bubbling up the DOM tree using something like event.stopPropagation();.
Alternatively, though, you can continue to delegate this handler to the document, and use the target property of the Event object passed into your handler callback to determine which element was the actual source of the event:
$(document).on('hidden.bs.modal', '#myModal', function (event) {
if (event.target.id == 'uploadImage') {
// do stuff when the upload dialog is hidden.
}
else if (event.target.id == 'myModal') {
// do stuff when the outer dialog is hidden.
}
});
P.S.: As you may already know, the Bootstrap framework does not support overlapping modal dialogs. Be aware of this as you continue to nest modals within modals, especially concerning dismissal elements initialized via the markup API and data-dismiss="modal".
P.P.S.:

The second modal html doesn't have to be included in the first modal body. Include only the data-target link and move the second modal outside the first. This way the events will fire as you expect.
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">Open demo modal</button>
<div class="modal" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="false">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">Demo Modal</h4>
</div>
<div class="modal-body">
<p>
Upload image
</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<div class="modal" id="uploadImage" tabindex="-1" role="dialog" aria-labelledby="uploadImage-title" aria-hidden="true">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="uploadImage-title">Upload new image</h4>
</div>
<div class="modal-body">
Testing Area
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" id="btnUploadCancel">Cancel</button>
<button type="button" class="btn btn-success">Accept</button>
</div>
</div>
</div>
</div>
http://jsfiddle.net/wytf57mL/3/

Open Modal (bootstrap) from other html-file

I'm building a website using bootstrap. But i'm come to somewhat of an dead-end. i've created a modal from an given example (see below). As you might see, this is a modal taken straight from their website.
<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" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">Nieuwe Taak toevoegen</h4>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
I open this dialog using a button.
<button type="button" class="btn btn-default btn-sm" data-toggle="modal" data-target="#myModal" >
But i want to keep my modals in seperate aspx/html-files. How can i open these modals when they are kept inside different html/aspx - files ?
example:
if the button is inside index.Html but the modal is inside newTaskModal.html, how would i open the modal? (If both are inside index.html, then there are no problems)
Note: I don't/can't use HTML5 (company-standards)

if you're using jquery, you could download the page using an ajax call:
$.ajax({
url: 'newTaskModal.html',
dataType: 'text',
success: function(data) {
alert(data);
// todo: add the html to the dom...
}
});
If you're building a single page application you might want to check out a framework designed to solve this type of problem:
durandal

Can you use PHP? If so there is simple solution.
Your index will be index.php and where you want to have your modal just place this code
<?php include "newTaskModal.html"; ?>

Also you could if you are using JQuery to load your html page into into a matched element.
$( "#result" ).load( "ajax/test.html", function() {
alert( "Load was performed." );
});
Go to http://api.jquery.com/load/ for more info.

STEP 1 Use below code for link:
<a class="btn btn-primary" data-toggle="modal" href="MyModal.html" data-target="#MyModal" data-backdrop="static">OPEN MODAL</a>
STEP 2 Use below code for modal window
<div class="modal fade" id="MyModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog model-sm">`enter code here
<div class="modal-content"> </div>
</div>
</div>
STEP 3 Create MyModal.html and place some text.
<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">Title</h4>
</div>
<div class="modal-body">
Modal Contents
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="submit" class="btn btn-success">OK</button>
</div>
Note: This may not work local html. works only on server!

How to reload page on closing a Bootstrap 3 modal

My aim is to get the page to reload when a Bootstrap modal is closed. The user can close the modal by clicking on the close button or icon or by clicking away from the modal.
My code so far is pretty standard. Taken from:
http://getbootstrap.com/javascript/#modals
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
Launch
</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" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">My title</h4>
</div>
<div class="modal-body">
My content
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save</button>
</div>
</div>
</div>
</div>
How can I get the page to reload after a modal is closed?
Update: Wow, fantastic fast response from everybody. Thank you

You can bind the event to reload page on click of close:
$('#myModal').on('hidden.bs.modal', function () {
location.reload();
})
Demo

try this with your button:
onclick="javascript:window.location.reload()"
full button:
<button type="button" onclick="javascript:window.location.reload()" class="close" data-dismiss="modal" aria-hidden="true">×</button>
example: http://jsfiddle.net/Valtos/52VtD/2288/embedded/result/

$('#myModal').on('hidden', function () {
document.location.reload();
})
Demo