ts Command pattern

// The Command pattern is a design pattern lets you encapsulate all

// information needed to perform an action in one object .

class Command {

  constructor(private receiver: Receiver) {}

  public execute() {

    this.receiver.action();

  }

}
const receiver = new Receiver();

const command = new Command(receiver);

const invoker = new Invoker();

invoker.setCommand(command);

invoker.execute();