What will be the output of the following code?

const day = 'Monday';
let message = '';
switch (day) {
  case 'Monday':
    message = 'Start of the week';
  case 'Tuesday':
    message += ' Go to work';
    break;
  case 'Wednesday':
    message += ' Halfway through the week';
    break;
  default:
    message = 'Weekend!';
}
console.log(message);