Summary

Functional programming model and its idioms help a programmer to write better code in the many-core architecture of the modern CPUs. C# programming language and the .NET platform has incorporated FP constructs into the language to help write certain kind of code in a functional manner. The mastery of lambda expressions and functions, type inference, expression trees, LINQ, and so on helps structure our code better if used judiciously by mixing the OOP and FP codes. Mixing of OOP and FP to write code is termed as object/functional programming, and most modern day languages like C#, Scala, Java (after version 8), Ruby, and so on support this idiom. In the next chapter, we will implement some GoF design patterns using object/functional programming, and also pick up some OOP/FP programming idioms such as map/reduce.