TypeError: $(…).modal is not a function with bootstrap Modal

↘锁芯ラ 提交于 2019-11-27 08:10:00

i just want to emphasize what mwebber said in the comment:

also check if jQuery is not included twice

:)

it was the issue for me

This error is actually the result of you not including bootstrap's javascript before calling the modal function. Modal is defined in bootstrap.js not jQuery. It's also important to note that bootstrap actually needs jQuery to define the modal function, so it's vital that you include jQuery before including bootstrap's javascript. To avoid the error just be sure to include jQuery then bootstrap's javascript before you call the modal function. I usually do the following in my header tag:

<header>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script src="/path/to/bootstrap/js/bootstrap.min.js"></script>
</header>
Rahul Mehra

After linking up your jquery and bootstrap write your code just below the Script tags of jquery and bootstrap.

$(document).ready(function($) {
  $("#div").on("click", "a", function(event) {
    event.preventDefault();
    jQuery.noConflict();
    $('#myModal').modal('show');

  });
});
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

Check that jquery library not included in html that load via Ajax .remove <script src="~/Scripts/jquery[ver].js"></script> in your AjaxUpdate/get_modal

Another possibility is that one of the other scripts your including is causing the problem by also including JQuery or conflicting with $. Try removing your other included scripts and see if it fixes the issue. In my case, after hours of needlessly searching my one code, I removed scripts in a binary search pattern and discovered the offending script right away.

In my case, I use rails framework and require jQuery twice. I think that is a possible reason.

You can first check app/assets/application.js file. If the jquery and bootstrap-sprockets appears, then there is not need for a second library require. The file should be similar to this:

//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require bootstrap-sprockets
//= require_tree .

Then check app/views/layouts/application.html.erb, and remove the script for requiring jquery. For example:

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>

I think sometimes when newbies use multiple tutorial code examples will cause this issue.

In my experience, most probably its happened with jquery version(using multiple version) conflicts, for sort out the issue we can use a no-conflict method like below.

jQuery.noConflict();
(function( $ ) {
  $(function() {
    // More code using $ as alias to jQuery
    $('button').click(function(){
        $('#modalID').modal('show');
    });
  });
})(jQuery);
Radostin

I resolved this issue in Laravel by modifing the line below in resources\assets\js\bootstrap.js

window.$ = window.jQuery = require('jquery/dist/jquery.slim');

to

window.$ = window.jQuery = require('jquery/dist/jquery');
Cristian Merli

I had the same issue. Changing

$.ajax(...)

to

jQuery.ajax(...)

did not work. But then I found that jQuery was included twice and removing one of them fixed the problem.

Run

npm i @types/jquery
npm install -D @types/bootstrap

in the project to add the jquery types in your Angular Project. After that include

import * as $ from "jquery";
import * as bootstrap from "bootstrap";

in your app.module.ts

Add

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>

in your index.html just before the body closing tag.

And if you are running Angular 2-7 include "jquery" in the types field of tsconfig.app.json file.

This will remove all error of 'modal' and '$' in your Angular project.

I have resolved this issue in react by using it like this.

window.$('#modal-id').modal();

For me, I had //= require jquery after //= require bootstrap. Once I moved jquery before bootstrap, everything worked.

I guess you should use in your button

<a data-toggle="modal" href="#form-content"    

instead of href there should be data-target

<a data-toggle="modal" data-target="#form-content"    

just be sure, that modal content is already loaded

I think problem is, that showing modal is called twice, one in ajax call, that works fine, you said modal is shown correctly, but error probably comes with init action on that button, that should handle modal, this action cant be executed, because modal is not loaded at that time.

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