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functional programming

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- 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.

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.

Learn more about Functional software testing

Streamlining test planning and design: Many project managers choose to ignore the vital process of test planning in developing software. Expert Robin Goldsmith explains why ignoring test planning is counter-productive.
Testing functionality, performance of mobile Web applications: Get best practices advice for functional and performance testing of mobile Web applications in this tip.
Software testing deliverables: Developing a software testing strategy: David Johnson updates his popular tip on software testing deliverables with detailed information on forming a test strategy.
Pros and cons of requirements-based software testing: Learn about the strengths and benefits of requirements-based testing as well as what the detractors say -- mostly based on incorrect assumptions about requirements.
Use functional and regression testing to validate SOA solutions: David W. Johnson explains how to use functional and regression testing to validate that SOA solutions deliver the business functionality required.

LAST UPDATED:

15 Feb 2007

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More resources from around the web:

-	The Functional Programming FAQ offers a definition.
-	Why Functional Programming Matters discusses the advantages of functional programming.

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