Intro to Functional Programming

Intro to Functional Programming

Functional programming is a programming paradigm that emphasizes the use of pure functions, which are functions that have no side effects and produce the same output for a given input every time they are called. In functional programming, functions are treated as first-class citizens, which means they can be passed as arguments to other functions, returned as values from functions, and stored in data structures.

Functional programming also discourages the use of mutable data structures and variables, preferring instead the use of immutable data structures and variables. This makes it easier to reason about the behavior of a program and avoid bugs related to unexpected changes in the state of the program.

Functional programming has been gaining popularity in recent years, in part because it can be used to write highly parallelizable code that can take advantage of multi-core processors and distributed computing. Functional programming languages such as Haskell, Scala, and Clojure have emerged as powerful tools for solving complex problems in domains such as finance, machine learning, and data analysis.

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