var expr = 'Pears';
switch(expr) {
  case 'Oranges':
    console.log('Oranges are $0.59 a pound.');
  break;
  case 'Apples':
    console.log('Apples are $0.32 a pound.');
  break;
  default:
    console.log('Sorry, we are out of ' + expr + '.');
    // expected output: "Sorry, we are out of Pears."
}