TypeScript Language features
Knowing the most important features of a programming language is necessary for the effective use of many parts of the framework as well as keeping the code readable.
Object-oriented programming is a paradigm based on encapsulating logic and data into objects, which may then contain fields and procedures. Many of the most widely used programming languages are based on OOP, making it a very important concept in modern programming.
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.