Triggering modal from condition in javascript

Triggering modal from condition in javascript - javascript

I have been painfully attempting to try and trigger a modal to fire, when a user writes more than 10 words in a textarea. I have tried the bootstrap documentation, 'Toggle AND 'Show' but they don't work. My console informs me that '.modal' isn't a correct function? but bootstrap informs me it is!
Basically my modal does not fire when the condition is met.
Here is my code:
HTML
<form>
<textarea placeholder="Would you like to leave a review?" maxlength="" id="textareaID"></textarea>
</form>
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<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">
...
</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>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
<script src="/node_modules/jquery/dist/jquery.js"></script>
<script src="./script.js"></script>
JS
$('#textareaID').bind('input propertychange', function() {
if (this.value.length > 10) {
$(document).ready(function(){
$('#exampleModal').modal('toggle');
}
$("#textareaID").val($("#textareaID").val().substring(0,20));
}
});

Use .modal('show') with proper syntax and it's working. It will display modal as soon as you enter 11th character. You can change the condition as per your need.
Regarding the use of $(document).ready(), you should wrap most javascript stuff in this function rather than using it in the if condition. It is just as a best practices. Not all elements would be available when the javascript is being executed.
$(document).ready(function() {
$('#textareaID').on('input propertychange', function() {
if (this.value.length > 10) {
$('#exampleModal').modal('show');
$("#textareaID").val($("#textareaID").val().substring(0, 20));
}
});
});
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
<form>
<textarea placeholder="Would you like to leave a review?" maxlength="" id="textareaID"></textarea>
</form>
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<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">
...
</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>
</div>

You can leverage .modal('show').
Keep in mind that adding $(document).ready(fun... inside the binding is useless. You should be wrapping all your jQuery inside it.
Use the following:
$(document).ready(function(){
$('#textareaID').on('input propertychange', function() {
if ($('#textareaID').val().length > 10) {
$('#exampleModal').modal('show');
$("#textareaID").val($("#textareaID").val().substring(0,20));
}
});
});
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous"><form>
<textarea placeholder="Would you like to leave a review?" maxlength="" id="textareaID"></textarea>
</form>
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<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">
...
</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>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.5.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ho+j7jyWK8fNQe+A12Hb8AhRq26LrZ/JpcUGGOn+Y7RsweNrtN/tE3MoK7ZeZDyx" crossorigin="anonymous"></script>
<script src="/node_modules/jquery/dist/jquery.js"></script>
<script src="./script.js"></script>

Related

Modal Not Popping Up When Clicking Button

I'm doing a walkthrough project to learn bootstrap, everything has been going well however now at a part of the project which I followed perfectly to create a signup modal, the button is not causing the modal to popup.
I have double checked that all my bootstrap links are in the right order, triple checked spelling errors, everything seems to be fine, I see no reason as to why the modal wouldn't work.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#4.6.2/dist/css/bootstrap.min.css" rel="stylesheet" />
<button class="btn btn-success btn-lg" data-toggle="modal" data-target="#signUpModal">Sign Up!</button>
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<script src="https://cdn.jsdelivr.net/npm/jquery#3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
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<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.2/dist/js/bootstrap.min.js" integrity="sha384-+sLIOodYLS7CIrQpBjl+C7nPvqq+FbNUBDunl/OZv93DB7Ln/533i8e/mZXLi/P+" crossorigin="anonymous"></script>
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</script>

It seems you forgot some tags and ids. You should use :
<link href="https://cdn.jsdelivr.net/npm/bootstrap#4.6.2/dist/css/bootstrap.min.css" rel="stylesheet" />
<button class="btn btn-success btn-lg" data-toggle="modal" data-target="#signUpModal">Sign Up!</button>
<div class="modal fade" id="signUpModal" tabindex="-1" aria labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<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">
<p>Modal body text goes here.</p>
</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>
<script src="https://cdn.jsdelivr.net/npm/jquery#3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.1/dist/umd/popper.min.js" integrity="sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.2/dist/js/bootstrap.min.js" integrity="sha384-+sLIOodYLS7CIrQpBjl+C7nPvqq+FbNUBDunl/OZv93DB7Ln/533i8e/mZXLi/P+" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-Fy6S3B9q64WdZWQUiU+q4/2Lc9npb8tCaSX9FK7E8HnRr0Jz8D6OP9dO5Vg3Q9ct" crossorigin="anonymous">
</script>
Source : Modal - Bootstrap v4.6

Change this :
<div class="modal" tabindex="-1" id="signUpModal">
To this :
<div class="modal fade" tabindex="-1" id="signUpModal" role="dialog" aria-labelledby="signUpModalLabel" aria-hidden="true">
I just don't understand why it doesn't work without the .fade class, since the documentation says it's possible...

Show Custom Modal

I have bootstrap modal which is not hidden. I mean there is no fade class which is generally seen as <div class="modal fade" role="dialog">. I want to show modal as popup when user clicks on button. The code below does not work as it is unable to detect it as modal.
JS
$(function(){
$('.custom-modal').click(function(e){
e.preventDefault();
var mymodal = $('#myModal');
mymodal.modal('show');
});
})
HTML
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Can you please check the below code? Hope it will work for you. You just need to add class="modal fade" with id="myModal" and it will work perfectly.
Please refer to this link: https://jsfiddle.net/yudizsolutions/2qfeagc5/
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$('.custom-modal').click(function(e) {
e.preventDefault();
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mymodal.modal('show');
});
})
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.6.0/dist/css/bootstrap.min.css" integrity="sha384-B0vP5xmATw1+K9KRQjQERJvTumQW0nPEzvF6L/Z6nronJ3oUOFUFpCjEUQouq2+l" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
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<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.0/dist/js/bootstrap.min.js" integrity="sha384-+YQ4JLhjyBLPDQt//I+STsc9iw4uQqACwlvpslubQzn4u2UU2UFM80nGisd026JF" crossorigin="anonymous"></script>
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Bootstrap modal malfunctioning

My bootstrap modal is malfunctioning, it's displayed as if there is no css or javascript files, I have tried to find the solution to this but i have not been able to resolve it, I even used the example in their website, it's not still working. below is my bootstrap code.
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
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displayed as if there is no css or javascript files
Because there is no css or javascript in your code example and screen.
Bootstrap is CSS framework so you need to include bundled CSS to your project.
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
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...
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Mailto link created thought javascript does not work in Bootstrap Modal

If I try to set href througth JavaScript in modal, mailto link does not work, but yes in the body part. But if you see when mouseover you can see the correct mailto link. Here there is an example:
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<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
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<br>
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<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
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I need to use the bootstrap 4 modal component, but when I click the button, the modal window does not appear. Can someone help me please.
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Launch demo modal
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<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">
...
</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>
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This copy of your code works. The only difference is that this code snippet includes link to the Bootstrap css and the necessary JavaScript sources (jQuery, popper, bootstrap).
<!-- CSS only -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
<!-- JS, Popper.js, and jQuery -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal
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<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">
...
</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>

Develop Reference

JavaScript is the programming language of the Web.

Triggering modal from condition in javascript - javascript

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