An example demonstrating kotlin let function is given below. Kotlin let is a scoping function wherein the variables declared inside the expression cannot be used outside. Let takes the object it is invoked upon as the parameter and returns the result of the lambda expression. The functions that we’re going to discuss below are: We’ll see how they make programming in Kotlin so easier and faster. The kotlin-stdlib provides us with useful higher order functions implementing idiomatic patterns. I know this is so you can chain ifNotNull and otherwise, but the signature looks odd nonetheless.In this tutorial, we’ll be implementing some of the important standard library functions available in Kotlin. The signature of ifNotNull is a bit odd since it runs a block that returns nothing and ifNotNull returns the raw object on which it is called instead. In a more functional style, functions are chained and return transformed values at each stage. As mentioned above, the block does something and returns nothing. I also think your functions are not very "functional" because they carry their action strictly by side effects. Another advantage is that you can use an if-else either to just run a code block that does something and returns nothing like your functions do, or you can instead use if-else as an expression and return some value. It's just easier to read a plain if-else than other Kotlin solutions, such as this solution using the elvis operator. See furthermore this linked answer from another question. The answer is to just use a plain if-else in such cases. There is this stackoverflow question: How to run code if object is null? I like answer a lot, which is that basically that the functions you wrote are not necessary.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |