Part 3: Creating Functions for an Automatic Light Application

Returning values from a function

We have previously created a function, but now we must check whether this function needs to return something. It calculates the distance, which we need to be outside of the function—so that value needs to be returned.

Again, we have two options. We can either return the value contained inside the variable distance like this:

Another option is to make this shorter, because in the previous example, the distance variable is being used to hold the distance for one line. So, instead of ...