The logic in the example is simple. First, our variable x equals the integer 3. We proceed through the switch statement until we find a case that is equal to 3. Once that condition has been met, we execute the document.write(‘Case 4.’); found inside the appropriate case. Ultimately, switch statements are not used very often in contrast to the if statement. But, the switch statement provides order and simplicity when you are modifying the code or adding extra conditionals.