Code - Functional programming (FP) - Collection Operations
Table of Contents
About
Functional programming (FP) defines standard operations on collections.
It is a declarative paradigm that treats computation as the evaluation of mathematical functions.
Most of the operations you perform on collections can be accomplished with five simple functions:
- mergeAll
- zip
These five functions hold a key to simplifying asynchronous programming and avoid race conditions, propagate and handle asynchronous errors, and sequence events and requests.
Multiple invocation of a function at different point of time will always return same output as long as input remains same. It makes easy to understand and predict behavior of program.
With functional programming (FP), the code should be organized around:
- pure functions that take data and transform it, without modifying any shared state.
- around how data flows between these pure functions to produce output data.
The application of several function programming operations creates a composite type called a Algebraic data type
Articles Related
Imperative vs Functional
Others function
Java
JVM based Functional Programming Languages
- Clojure
- Groovy
Library
- ReactiveX - ReactiveX: A library for composing asynchronous and event-based programs using observable sequences for the Java VM, Javascript
- https://ramdajs.com/ - Javascript