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 if (age > 19) {
    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'
  }

}