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iOS

Meg Cusack
Meg Cusack
11,448 Points
Posted by Meg Cusack
Meg Cusack
11,448 Points

Swift> Control Flow> Switch statement quiz question

In the switch statement quiz, the second question, I got it correct but why did he put in the end of the correct answer code "default: println(month)"? I thought you only need to put in the default if the cases are not exhaustive? The 4 cases in that answer already covered all other possibilities for cases.

1 Answer

Ricardo Hill-Henry
Ricardo Hill-Henry
38,442 Points

I'm not sure exactly what question you're referencing, but I would say use a default fallback no matter what. Over time a value can change in a program, and you don't want bugs caused due to this. Taking the time to enter those few lines can save you a lot of headache later on in a project as it grows. Indeed, it is optional, and if the challenge used it though it isn't needed, it's likely to reinforce good habits.

Meg Cusack
Meg Cusack
11,448 Points
Meg Cusack
Meg Cusack
11,448 Points

Thanks, very helpful.