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Frances Angulo
5,311 PointsReturn vs. Println
What was the benefit of returning the value over printing it? If you print it, does it form as a string so that the calculation is not as versatile with other uses? Kind of like a data type in an Excel sheet?
1 Answer
Chris Shaw
26,676 PointsHi Frances,
The println function should always be considered as a way to debug your code as it doesn't store the value anywhere for you to use later on, the benefit of it is to print data to the Xcode console to fix issues. Once you've completed your debugging it's best practice to remove any rouge println calls to ensure the best performance of your app is achieve.
As for the return keyword you should always use it anywhere a function has a return type specified which is anything other than Void.
Frances Angulo
5,311 PointsFrances Angulo
5,311 PointsSo if you wanted to have something print out on the screen for a user, you would not use println? It's mainly intended to test the results of a line of code?
Chris Shaw
26,676 PointsChris Shaw
26,676 PointsCorrect, if you wish to output data onto a users screen you will need to use a
UITextViewor a multi-lineUILabelview.