Learn TypeScript

TypeScript Topics

Click on a topic to expand and learn in detail.

• 1. Introduction to TypeScript

let message: string = "Hello, TypeScript!";
console.log(message);
      

TypeScript adds type safety to JavaScript and helps catch errors at compile time.

• 2. Variables & Types

let name: string = "Alice";
let age: number = 25;
let isStudent: boolean = true;
      

TypeScript variables have explicit types.

• 3. Functions

function add(a: number, b: number): number {
    return a + b;
}
console.log(add(5,3));
      

Functions can have typed parameters and return types.

• 4. Classes & OOP

class Person {
    name: string;
    age: number;

    constructor(name: string, age: number) {
        this.name = name;
        this.age = age;
    }

    greet() {
        console.log("Hello " + this.name);
    }
}

let p = new Person("Alice", 25);
p.greet();
      

TypeScript supports classes, inheritance, and object-oriented programming.

• 5. Advanced TypeScript
• Interfaces & Types
• Generics
• Modules & Namespaces
• Decorators