it-praxisportal/courses/javascript/01_erste_schritte_variablen/musterloesung.js

function addieren(a, b) {
  return a + b;
}

function begruessung(name) {
  return `Hallo ${name}, willkommen zu JavaScript!`;
}

function istVolljaehrig(alter) {
  return alter >= 18;
}