Reputation:
I just fresh-installed a Laravel 9 app, added select2 and jquery with npm, passed what I needed to pass to vite.config.js and app.js, jquery is getting loaded way before select2 is loaded and yet still, select2 throws
Uncaught ReferenceError: jQuery is not defined
at select2.min.js:2:241
at select2.min.js:2:249
I even made a div#test and used jquery to put "ok" inside it when the window is loaded, it changes to "ok", but then why is select2 complaining?
package.json
"dependencies": {
"jquery": "^3.6.1",
"select2": "^4.1.0-rc.0"
}
vite.config.json
export default defineConfig({
plugins: [
laravel({
input: ['resources/css/app.css', 'resources/js/app.js'],
refresh: true,
}),
],
resolve: {
alias: {
'$': 'jQuery',
},
},
});
app.js
import "./bootstrap";
import $ from "jquery";
window.$ = $;
// import { Select2 } from "select2"; // does nothing when uncommented
import 'select2'; // does nothing
$("#test").html("ok");
$(document).on("load",function() { // does nothing
$(".js-example-basic-single").select2();
});
index.blade.php
just partial paste
@vite(['resources/css/app.css', 'resources/js/app.js'])
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/select2.min.css" rel="stylesheet" />
</head>
<body>
<div id="test"></div> <--- this will have "ok" in it since jquery is loaded
<select class="js-example-basic-single"> <--- this displays as a regular select instead of select2
<option value="x">asd</option>
<option value="x">asd</option>
<option value="x">asd</option>
<option value="x">asd</option>
</select>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/select2.min.js" defer></script> <------ if I have this "jquery is not defined" will be thrown
partial paste end
If I remove the CDN script from the end, it won't throw the error anymore but still won't work. Also CDN is only used while I test if it works or not, I'll need it locally anyway...
I literally tried everything I could, I've been struggling with it for 4 days and can't figure out what's wrong with this.
Upvotes: 5
Views: 10897
Reputation: 4541
After installing Select2 (and Jquery of course) with npm npm install select2 --save-dev
, I had to initialize it.
import $ from 'jquery';
import select2 from 'select2';
select2($);
After that, you can use it like you usually do, $(
#mySelect).select2();
Also, in your other <script>
tags, don't forget to add type='module'
, otherwise they get loaded before Vite loads your app.js and Jquery's $
is not yet defined.
Upvotes: 3
Reputation: 376
After you install Select2 using: npm install select2 --save-dev
, you need to add these 2 lines to bootstrap.js, after the jQuery import lines:
import select2 from 'select2';
select2();
Also add the Select2 CSS to app.scss:
@import "/node_modules/select2/dist/css/select2.css";
Alternatively you can add the Select2 CSS to app.js
import "/node_modules/select2/dist/css/select2.css";
In your JavaScript you can use it like you used to:
$(".js-example-basic-single").select2();
Upvotes: 26