Configure field dependency in Power Apps Solutions for JavaScript Web Resources
Working with solution is not new for us. While working with solutions we have to follow best practices by managing component dependencies to avoid unknowing breaking of components. lets us take an example. You are trying to validate a field using JavaScript and you need to have the field on the form. But somehow as new developer does not know about the field use on the form by the JavaScript library so he removed the field from form.
Now this will break the JavaScript code. So for best practices always use field dependency for web resource event handlers.
Another important feature is that by listing a field as a dependency, you no longer need to add the field to the form.
Hope this helps