How to unload a class with a lot of methods?

Question

JavaScript

There is a class in which many methods have appeared over time (now about ~ 400 lines of code), the methods themselves are small and neat, but I understand that so much code inside 1 class is unacceptable (after all, this class is planned to be expanded further). What architectural solution is best for unloading this class, where to look?

Answer 1

Most likely it solves many different problems. Divide a class into parts: 1 class 1 task
https://refactoring.guru/en/smells/large-class
PS
Don't touch it works :)

Answer 2

Read the 4x Gang's book "Object-Oriented Design Techniques. ... .
and Clean Code: Creation, Analysis, and Refactoring" by Uncle Bob.