Data Types in TypeScript

TypeScript provides several data types to work with. Here are the main types:

# Primitive Types

1. **Boolean**

   ```typescript
   let isDone: boolean = false;

2. Number

    let decimal: number = 6;
    let hex: number = 0xf00d;
    let binary: number = 0b1010;
    let octal: number = 0o744;
   

3. String

    let color: string = "blue";
    color = "red";
   

4. Array

    let list: number[] = [1, 2, 3];
    let list: Array<number> = [1, 2, 3];
   

5. Tuple

    let x: [string, number];
    x = ["hello", 10];
   

6. Enum

    enum Color {
      Red,
      Green,
      Blue,
    }
    let c: Color = Color.Green;
   

7. Any

    let notSure: any = 4;
    notSure = "maybe a string instead";
    notSure = false;
   

8. Void

    function warnUser(): void {
      console.log("This is my warning message");
    }
   

9. Null and Undefined

    let u: undefined = undefined;
    let n: null = null;
   

10. Never

    function error(message: string): never {
      throw new Error(message);
    }
    

11. Object

    let obj: object = { name: "John", age: 30 };
    

These types help in building robust and type-safe applications in TypeScript.