The error message "external.js: $ is not defined" indicates that

Recently, I integrated an external JavaScript file into my Angular 14 project. This JS file contains the event $('.class').click(). However, every time I launch the application on localhost, a message pops up in the browser stating that $ is not defined. Since I am relatively new to Angular, my main concern is how I can properly define this variable - $.

I attempted to resolve the issue by inserting var $ = require('jquery') at the beginning of the JS file. Unfortunately, this resulted in a new error indicating that 'require' is also undefined.

angulartypescript

Answer №1

Are you attempting to integrate jQuery into your Angular application?

The $ symbol is a convenient shorthand for referencing jQuery.

Typically, when developing an Angular application, there is often no need to incorporate the jQuery library. However, if there arises a specific scenario where utilizing jQuery alongside Angular is necessary, check out this resource: How to use jQuery with Angular?

Answer №2

Thank you for your responses, I have identified the mistake that was made. I successfully included my external JS in the scripts section of angular.json. This should have been sufficient, however, I also added 

<script src=""></script>
to the index.html file. Once I removed this line, the error disappeared. I was working on a Form Slider and needed the JavaScript to manage the animations for me.

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