flow-control.js

function basicTeenager(age) {
  if(age >= 13 && age <= 19) {
    return("You are a teenager!");
  }
}

function teenager(age) {
  if(age >= 13 && age <= 19) {
    return("You are a teenager!");
  } else {
    return("You are not a teenager");
  }
}

function ageChecker(age) {
  if(age >= 13 && age <= 19) {
    return("You are a teenager!");
  } else if(age <= 12) {
    return("You are a kid");
  } else {
    return("You are a grownup");
  }
}

function ternaryTeenager(age) {
return (age >= 13 && age <= 19) ? "You are a teenager" : "You are not a teenager";
}

function switchAge(age) {
switch(age) {
 case 13:
 return "You are a teenager";
 break;
 case 14:
 return "You are a teenager";
 break;
 case 15:
 return "You are a teenager";
 break;
 case 16:
 return "You are a teenager";
 break;
 case 17:
 return "You are a teenager";
 break;
 case 18:
 return "You are a teenager";
 break;
 case 19:
 return "You are a teenager";
 break;
 default:
 return "You have an age";
          }
}