Programming under the functional paradigm aims to bind everything in a pure mathematical functions manner. As the name implies, it's a declarative programming approach. Unlike an imperative style, which focuses on "how to solve," this approach focuses on "what to solve." Instead than using statements, it makes use of expressions. In contrast to the evaluation of expressions, statements are executed in order to assign variables. This functionality has certain unique characteristics.
Focusing on results rather than the process is what functional programming is all about.
The foundation for Functional Programming is Lambda Calculus. As a result of functional application, definition and recursion it was created in the 1930s. The functional programming language LISP was the first to be developed. McCarthy designed it in 1960. University of Edinburgh academics established the ML in the 1970s (Meta Language). In the early 80’s Hope language included algebraic data types for recursion and equational reasoning. Scala, an innovative functional language, was introduced in 2004.
The following are some of the benefits of functional programming:
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