I am learning Typescript and am trying to print a console message a number of times over a period of time. But in my test this happens once, you know the reason?

The code is below:

 class Class {

    private msg: string;

    constructor(msg: string) {

        this.msg = msg;

    }

    private printMsg(): void {

        console.log(this.msg);

    };

    public repeatMsg(): void {

        let intervalo = setInterval(this.printMsg(), 2000);

        setTimeout(function() {

            clearInterval(intervalo);

        }, 40000);

    }

}



let test: Class;

test = new Class(Hello);

test.repeatMsg();