Explain and implement a Kotlin higher-order function
Tests understanding of first-class functions and lambda usage. First, define a higher-order function (HOF) as one that takes/returns functions. Then, implement the requested function, iterating to apply the predicate and transform.
This tests your grasp of functional programming in Kotlin. Can you define a higher-order function (HOF) and then write one using lambdas? A great answer first defines a HOF as a function taking functions as parameters or returning one. Then, implement `filterAndTransform` by creating a new list, iterating the input, applying the predicate, and if true, applying the transform and adding the result. A red flag is implementing the function with a loop but failing to explain the core concept of functions as first-class citizens.
Read the original → kotlinlang.org
- #kotlin
- #functional programming
- #higher-order functions
- #lambdas
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