TypeScript Constructed example

typescript.constructed.ts

class A {

    public get static() {
        return Object.getPrototypeOf(this).constructor;
    }
    
    constructor() {
        console.log('constructor A');
        this.constructed(A);
    }
    
    public constructed(type:any) {
        if (type === this.static) {
            this.initialize();
        }
    }
    
    public initialize() {
        console.log('initialize A');
    }
}

class B extends A {

    constructor() {
        super();
        console.log('constructor B');
        this.constructed(B);
    }
    
    public initialize() {
        console.log('initialize B');
    }
}

console.info('instantiate A');
var a = new A();

console.info('instantiate B');
var b = new B();