He spends his free time working on personal projects that make his everyday life easier or taking long evening walks with friends. Nitish is a web developer with experience in creating eCommerce websites on various platforms. This post has been updated with contributions from Nitish Kumar. Or check out some of our other Android app development posts here on Envato Tuts+! To learn more about the Kotlin language, I recommend visiting the Kotlin documentation. In the next tutorial in the Kotlin From Scratch series, you'll learn more about functions in Kotlin. In this tutorial, you learned about the packages and basic functions in the Kotlin programming language. The answer for that will be in a later post, when we discuss Kotlin's data classes. I am sure some of you are wondering what to do if you want to return more than three values. Val ( name, state, age ) = getUserNameStateAndAge ( 101 )

Return Triple ( userNames, userStates, userAge ) Val userStates: Map = mapOf ( 101 to 'Lagos', 102 to 'Imo', 104 to 'Enugu' )

Val userNames: Map = mapOf ( 101 to 'Chike', 102 to 'Segun', 104 to 'Jane' ) This also makes it more explicit from which layers the error came from.Fun printNumbers ( myDouble: Double, vararg ints: Int, myFloat: Float ) ) As always, the code samples are available over on GitHub. Additionally, we can even combine literals and arrays to functions with vararg parameters.

It’s also possible to pass multiple arrays. Firstly, we can simply pass an array with a spread operator to the function call. Here we have defined a service function, that talks to the Persistence layer, and the Network layer.īoth layers have their own error hierarchy, and we would like to keep them separate, so we don’t have to create a single error hierarchy for all layers. There are multiple ways of converting a Kotlin array to a vararg parameter.

Kotlin list to vararg