how to declare a class in typescript code example

Example 1: typescript class type t

class GenericNumber<T> {
    zeroValue: T;
    add: (x: T, y: T) => T;
}

let myGenericNumber = new GenericNumber<number>();
myGenericNumber.zeroValue = 0;
myGenericNumber.add = function(x, y) { return x + y; };

Example 2: classes in ts

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

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Typescript Example

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