How to change function in Javascript class prototype?

Question

JavaScript

I am using bootstrap in my project and I need to change the behavior of the Modal class.
All functions and the class itself are declared in the bootstrap.js file, which is included after jQuery. After that, my script is also connected. In it after I try to change the behavior of the Modal class, but it says "Modal is not defined" to me.
How can I correctly change the prototype of this class?

Answer 1

In my opinion, there are two options:
The problem is in the order of loading libraries - maybe one of the libraries is loaded asynchronously?
Either you are accessing the Modal variable incorrectly.