Choosing from Multiple Options

The switch statement replaces a long chain of if..else if. It makes the code cleaner and more readable when you need to compare a single variable against multiple values.

1. The Basics

switch (role) {
  case 'admin':
    alert('Hello, boss!');
    break;
  case 'guest':
    alert('Access denied');
    break;
  default:
    alert('Who are you?');
}

2. Grouping Cases

Multiple cases can execute the same code:

switch (browser) {
  case 'Edge':
  case 'Chrome':
  case 'Firefox':
    alert('Ok, we support it');
    break;
}