Functional programming
Functional programming is a programming paradigm that relies on the functional transformation of data between stages, not so different from the dataflow programming we just saw. The main addendum to the data flow paradigm is that, within the functional one, there is a specific functional transformation, while in the data flow paradigm such transformations occur in a specific idiom-based way that can be functional-based, script-based (imperative paradigm), component-based, or anything else.
In functional programming, data is always immutable and functions are responsible for data transformation. Anything in functional style is a data transformation. Although a decisional statement (if) cannot exist, a functional transformation ...
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