Basics
- Access Modifiers
- Basic Concepts
- Build Task
- Compiling Manually
- Creating Paths
- Hierarchy
- http-server
- package.json
- Simple Example
- tsconfig.json - the /TypeScript project file
- tsconfig.json - multiple files
- Strict Null Checks
- Type Annotations
- Type Assertions
- TypeScript features
Challenges
Classes
- Abstract Classes
- Basics and Features
- Car Class Demo
- Class Fields
- Class Properties
- Constructors
- Inheritance (extends) Demo
- Function as Class Property
- instantiating new objects
- Spaceship Class Blueprint Demo
Debugging
Events
External Files
Flow Control
Forms
Functions
- Arrow Functions
- Arrow Functions 'this'
- Function Examples
- Function Scope Example
- Function with default arg values
- Function Types
- Global Functions
- Lambdas
- Optional Arguments
- Simple Arrow Functions Example
Html Elements
Installation
Interfaces
- Basics
- Duck Typing
- Employee Interface Example
- Implements vs Extends
- Interface Spaceship Contract Example
- Configuration Contract Example
Keywords
Modules
Namespaces
Operators
Reference Files
String
Types
TypeScript - Extends
In TypeScript, you can inherit another class just like you can in most OO languages.
In c#, you would denote an inherited class by the use of a colon like so: public class Rectangle : Polygon.
In TypeScript, we do this with the extends keyword.
Dog
Cat
As expected, you can access members of the base class in the derived class...but you cannot access members of other derived classes.
