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Ryan Maneo4,342 Points
I was never told switch statements can have a return value...
Another omitted piece of crucial info in the lessons. I was never told this, and he never implicitly said it in the video either. He just assumed I knew it. Can someone please explain what switch statements can do? All I remember them doing is switching one string to another using a Dictionary. I was never given any more complex examples.
Jennifer NordellTreehouse Teacher
Hi there! Well he sort of does imply it. In this video at about 1:17 he explains that switch statements are used instead of a long series of if / else if statements. And this is true. The implication here is that anything that can be inside the body of an if/else if statement can also be inside the body of a switch statement. This includes a return statement to return a value. You might consider taking a peek at the video again. It never hurts to have a refresher! Hope this helps!
The function has to return a value if it is provided in the function declaration via ->. So, that is the reason why we use a return in a switch statement. With the same success we can use the return in any other control flow swift construct such as a loop (While, for) or a conditional statement (if statement). As soon as the return keyword in the code is reached the compiler stops and returns the obtained value. Hope this made things clearer.