1) Functional programming is a style of programming that emphasizes the evaluation of expressions rather than the execution of commands. Erlang programming language is described as a functional programming language. Erlang avoids the use of global variables that can be used in common by multiple functions since changing such a variable in part of a program may have unexpected effects in another part.
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
2) In an earlier definition from the ITU-TS, functional programming is "a method for structuring programs mainly as sequences of possibly nested function procedure calls." A function procedure is a relatively simple program that is called by other programs and derives and returns a value to the program that called it.