classes in typescript

1class Info {
2  private name: string ;
3  constructor(n:string){
4    this.name = n ;
5  };
6  describe(){
7    console.log(`Your name is  ${this.name}`);
8  }
9}
10
11const a = new Info('joyous');
12a.describe();

1class GenericNumber<T> {
2    zeroValue: T;
3    add: (x: T, y: T) => T;
4}
5
6let myGenericNumber = new GenericNumber<number>();
7myGenericNumber.zeroValue = 0;
8myGenericNumber.add = function(x, y) { return x + y; };
9

1class Greeter {  greeting: string;
2  constructor(message: string) {    this.greeting = message;  }
3  greet() {    return "Hello, " + this.greeting;  }}
4let greeter = new Greeter("world");Try

1class Animal {
2  move(distanceInMeters: number = 0) {
3    console.log(`Animal moved ${distanceInMeters}m.`);
4  }
5}
6
7class Dog extends Animal {
8  bark() {
9    console.log("Woof! Woof!");
10  }
11}
12
13const dog = new Dog();
14dog.bark();
15dog.move(10);
16dog.bark();Try

1class Animal {  public name: string;
2  public constructor(theName: string) {    this.name = theName;  }
3  public move(distanceInMeters: number) {    console.log(`${this.name} moved ${distanceInMeters}m.`);  }}Try