10

8

6

4

2


8.2

6.4

7.4

9.4

5.8

7.0

5.0

9.6

4.9

7.2

3.5

7.0

10 Functional Programming libraries and projects

  • Functional Java

    8.2 6.4 A Java
    Implements numerous basic and advanced programming abstractions that assist composition-oriented development.
  • Javaslang

    7.4 9.4 D Java
    Functional component library that provides persistent data types and functional control structures.
  • jOOλ

    5.8 7.0 F Java
    Extension to Java 8 which aims to fix gaps in lambda, providing numerous missing types and a rich set of sequential Stream API additions.
  • cyclops-react

    5.0 9.6 F Java
    Monad and stream utilities, comprehensions, pattern matching, functional extensions for all JDK collections, future streams, trampolines and much more.
  • StreamEx

    4.9 7.2 F Java
    Enhancing Java 8 Streams.
  • derive4j

    3.5 7.0 C Java
    Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, morphisms.
  • protonpack

    3.5 5.5 A Java
    Collection of stream utilities.
  • Fugue

    2.7 -
    Functional extensions to Guava.
  • underscore-java

    2.7 7.9 F Java
    java port of Underscore.js
  • Faux Pas

    1.5 5.8 A Java
    Library that simplifies error handling by circumventing the issue that none of the functional interfaces in the Java Runtime is allowed by default to throw checked exceptions.

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