How can I call a function out of another functione inside a Class : I have the following problem: I want to call the Function "printHello" from the Function "testHello". The printHello function works on its own, however, when I try to call "printHello" from the "testHello" function, I get an reference error. Thank you for your help. 

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    class Test{
        constructor(name){
            this.name; 
        }

        printHello(parameter){
            console.log(parameter);
        }

        testHello(){
            printHello(printHello(this.name));
        }

    }
    var test = new Test("Sandro");
    test.printHello("hello");   //works, prints "Hello" to the Console 
    test.testHello();  // does not work: Reference Error: printHello is not defined

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