TypeScript Essential Training

Introduction

• Learning TypeScript
• Why TypeScript?
• Sample code and other online resources

1. Introducing TypeScript to Your Application

• Installing TypeScript
• Adding TypeScript to an existing solution
• Adding type checking to JavaScript files
• Importing third-party types
• Challenge: JavaScript to TypeScript
• Solution: JavaScript to TypeScript

2. Basic TypeScript Usage

• Primitives and built-in types
• Creating custom types with interfaces
• Defining types using type aliases
• Defining enumerable types
• Typing functions
• Defining a metatype using generics
• Challenge: Types
• Solution: Types

3. Defining More Complex Types

• Combining multiple types with union types
• Keyof operator
• Typeof operator
• Indexed access types
• Defining dynamic but limited types with records
• Resource management with the using keyword

4. Extending and Extracting Metadata from Existing Types

• Extending and modifying existing types
• Extracting metadata from existing types
• Challenge: The right type
• Solution: The right type

5. Adding Dynamic Behavior with Decorators

• What are decorators and why are they helpful?
• Creating a method decorator
• Creating decorator factories
• Creating a class decorator
• Creating a property decorator

6. Working with Modules

• Module basics
• Share code with imports and exports
• Defining global types with ambient modules
• Declaration merging
• Executing modular code