How to create Singleton Class in Typescript and use it

Hi Everybody, Today I will show you all how to write a Singleton class in Typescript and use it in you applications.
Below are the classes which I created one consists of Singleton class and other one to import and use it.

	export class Singleton {
	private static instance: Singleton;
	private _data: number;
	private constructor() { }
	static getInstance() {
	if (!Singleton.instance) {
	Singleton.instance = new Singleton();
	Singleton.instance._data = 0;
	}
	return Singleton.instance;
	}
	get data(): number {
	return this._data;
	}
	set data(data) {
	this._data = data;
	}
	}

view raw Singleton.ts hosted with ❤ by GitHub

	// Usage
	import { Singleton } from "./Singleton";
	const singleInstance = Singleton.getInstance();
	singleInstance.data = 10;
	console.log(singleInstance.data);
	//creating second instance should return same
	const singleInstance2 = Singleton.getInstance();
	console.log(singleInstance2.data); //will return 10

view raw SingletonUsage.ts hosted with ❤ by GitHub

The First class is the one which provides the Singleton Implementation and the second one is the one which I imported and used to store the data.
Please leave comments if you have any questions.