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How to fix Bootstrap 4 dropdown menu not working with JavaScript?

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Sometimes, we want to fix Bootstrap 4 dropdown menu not working with JavaScript.

In this article, we’ll look at how to fix Bootstrap 4 dropdown menu not working with JavaScript.

How to fix Bootstrap 4 dropdown menu not working with JavaScript?

To fix Bootstrap 4 dropdown menu not working with JavaScript, we should make sure all the required libraries are added.

For instance, we write

<script
  src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
  integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
  crossorigin="anonymous"
></script>
<script
  src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
  integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
  crossorigin="anonymous"
></script>
<script
  src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
  integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
  crossorigin="anonymous"
></script>

to add jQuery and popper.js before adding the Bootstrap JavaScript library.

Conclusion

To fix Bootstrap 4 dropdown menu not working with JavaScript, we should make sure all the required libraries are added.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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