Learn Typescript

This repo will cover all the concepts required to learn Typescript from the scratch

I have created this repo as a part of self-learning and development activity by referring the Udemy Course - Understanding Typescript - 2021 Edition

Project Structure

• concept_images → Structure images for reference
• language_fundamentals → Minute details with examples on each and every topic in typescript

Language Fundamentals

Refer here for Typescript official documentation.

Typescript Introduction

List of topics coverd under this section:

• Intro to Typescript
• Convert JS code to TS code
• Advantages of using TS
• Course Outline

Typescript Basics & Basic Types

List of topics coverd under this section:

• Using Types
• Working with number, strings, and booleans
• Object Types
• Array Types
• Tuple Types
• Working with Enums
• Union Types
• Literal Types
• Type Alias or Custom Types
• Function Return Types and "void"
• Functions as Types
• Functions Types and Callbacks
• The Unknown Type
• The Never Type

The Typescript Compiler

List of topics coverd under this section:

• Using "Watch Mode"
• Compile Entire Project
• Include and Exclude Files

Resources

• Check all configuration related to tsconfig.json here
• Check tsc CLI options here

Next-Gen Javascript & Typescript

List of topics coverd under this section:

• Let vs Const
• Arrow Functions
• Default Function Value
• The Spread Operator
• Rest Parameters
• Array & Object Destructuring

Resources

• Refer here to see compatibility table

Classes and Interface

List of topics coverd under this section:

Classes

• What are classes?
• Creating First Class
• Constructor Function and This keyword
• Private and Public Access Modifiers
• Shorthand Initialization
• Readonly Properties
• Inheritance Structure
• Overriding Properting and using protected modifier
• Getters and Setters
• Static Methods and Properties
• Abstract Classes
• Singeton Pattern and Private Constructor

Interfaces

• Creating First Interface
• Using Interface with Classes
• Extending Interfaces
• Interface as Function Types
• Optional Parameters and Properties

Advanced Types

List of topics coverd under this section:

• Intersection Types
• Type Guards
• Discriminated Unions
• Type Casting
• Index Properties
• Function Overloads
• Optional Chaining
• Nullish Coalescing

Generics

List of topics coverd under this section:

Functions

• What are Generics & Built-In Generics
• Creating a Generic Function
• Working with Constraints
• Another Generic Functions
• The "keyof" constraint

Classes

• The Generic Classes

Utility Types

• Partial Types
• Read-only Types

Resources

• Learn more about Generics here

Decorators

List of topics coverd under this section:

• First Class Decorator
• Working with Decorator Factories
• Building More useful Decorator
• Adding multiple Decorators
• Creating property Decorators
• Accessor and Parameter Decorator
• When are Decorator Executed?