Error message: The issue arises when trying to incorporate jQuery-UI into an Angular 4 application due to the undefined status of

I'm currently working on integrating jQuery-UI into an application to utilize some sliders. I've successfully installed the typings for jQuery by running:

npm install @types/jquery --save

And it seems I've also installed the jQuery-UI typings with:

npm install @types/jqueryui --save

In addition, I have included the necessary jQuery and jQuery-UI CDN references in the index.html file:

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>SimutronApp</title>
  <base href="/">
  <script
    src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
    integrity="sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g="
    crossorigin="anonymous">
  </script>
  <script
    src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"
    integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU="
    crossorigin="anonymous">
  </script> 
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="icon" type="image/x-icon" href="favicon.ico">
</head>
<body>
  <app-root>Loading...</app-root>
</body>
</html>

However, when testing in Firefox, I encounter the error:

t.fx is undefined     jquery-ui.min.js:6

While Chrome throws the error:

cannot read property 'step' of undefined at <String>.anonymous

Has anyone encountered this issue before or can provide guidance on properly adding jQuery-UI to an Angular 4 project?

jqueryangularjquery-uitypescriptnpm

Answer №1

Jquery Slim eliminates certain functionalities that Jquery UI depends on.

Swap it out with:

<script src="http://code.jquery.com/jquery-3.2.1.min.js"
        integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
        crossorigin="anonymous"></script>

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