Higher-order functions
In C#, a higher-order function is a function that takes one or more functions as arguments or returns a function as its result. This concept is an essential aspect of functional programming and enables powerful abstractions and code reusability.
There are two main types of higher-order functions in C#:
- Functions that take other functions as arguments: These higher-order functions accept one or more functions as parameters. They can then apply those functions to data or invoke them within their own implementation. By passing different functions as arguments, the higher-order function can be customized to perform various operations without needing separate implementations for each case.
In functional programming, one of the key principles is immutability. In C#, you can use LINQ to achieve a non-mutating state. Here’s an example of a higher-order function that takes functions as arguments and uses LINQ without violating the non-mutating state concept...