Summary
In this chapter, we introduced many of the features that constitute a functional programming language. These included functions and the idea that they can be combined in more powerful ways than are possible in an imperative type language.
Functional languages frequently allow the expression of program logic using a fluent style where function invocations build upon each other. The expression of parallel behavior is simplified in functional programming languages allowing better optimization of code.
An important goal of functional programs has been to minimize the use of mutable data and avoid side effects. This also promotes certain optimizations and makes functional code more maintainable. Recursion is central to functional programming ...
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