Facade Pattern in TypeScript

shape-facade.ts

class ShapeFacade {
  private circle: Shape;
  private rectangle: Shape;
  private triangle: Shape;

  constructor() {
    this.circle = new Circle();
    this.rectangle = new Rectangle();
    this.triangle = new Triangle();
  }

  public drawCircle(): void {
    this.circle.draw();
  }

  public drawRectangle(): void {
    this.rectangle.draw();
  }

  public drawTriangle(): void {
    this.triangle.draw();
  }
}