Singleton in Typescript

Singleton.ts

class Singleton {
    private static instance: Singleton;

    private constructor() {
        // do something construct...
    }

    static getInstance() {
        if (!Singleton.instance) {
            Singleton.instance = new Singleton();
            // ... any one time initialization goes here ...
        }

        return Singleton.instance;
    }

    someMethod() { }
}

const something = new Singleton() // Error: constructor of 'Singleton' is private.

const instance = Singleton.getInstance() // do something with the instance...