Assuming you don't use TypeScript, this was very helpful👍

koomajin0570

This course will teach you JavaScript through theory and practice. This course is for those who are somewhat familiar with JavaScript. Part 2 covers abstraction, encapsulation, inheritance, and polymorphism in JavaScript.

usefulit

JavaScript+jQuery from Basics to Practice: Advanced Part.2

입문

초급

중급이상

자바스크립트

JavaScript

제이쿼리

jQuery

Abstraction and Encapsulation

Basics of Class Inheritance

Intermediate Class Inheritance

Polymorphism