text: //exercise 9-1
  var shoutOut = ()=>`Hello Function!`;
  console.log(shoutOut())
  
  //exercise 9-2
  var num1 = 5;
  var num2 = 6;
  
  var calculateMultiply = (x,y)=>x*y;
  var hasilPerkalian = calculateMultiply(num1,num2);
  console.log(hasilPerkalian); 
  
  //exercise 9-3
  var name = "Ralph";
  var age = 20;
  var address = "88 street, Avenue X, New York";
  var hobby = "glass cleaning";
  
  var processSentence = (name,age,address,hobby)=>`Nama saya ${name}, umur saya ${age} tahun, alamat saya di ${address}, dan saya punya hobby yaitu ${hobby}!`;
  var fullSentence = processSentence(name,age,address,hobby);
  console.log(fullSentence);