Chapter 3Scala and Functional Style
by Venkat Subramaniam
When designing Scala, Martin Odersky took the bold, unconventional step of bringing together two different paradigms: the object-oriented and the functional. This is no trivial undertaking: these two styles are quite dissimilar, and this marriage of distinct paradigms poses some real challenges.
To see what Odersky was up against, let’s first take a look at what it means to be functional. There are two defining aspects to the functional style of programming: the purity of functions, and programming with higher-order functions.
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