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Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

Description

Functional programming provides developers with the tools to abstract common collection operations into reusable, composable building blocks. You'll be surprised to learn that most of the operations you perform on collections can be accomplished with five simple functions:

  • map
  • filter
  • flatMap
  • reduce
  • zip

Here's my promise to you: if you learn these 5 functions your code will become shorter, more self-descriptive, and more durable.

Note: Attribution

This kata collection is an adaptation of the Functional Programming in Javascript online exercises: http://reactivex.io/learnrx/ (Apache 2 license).

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Status:Retired
Estimated Rank:
8 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
8 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
8 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
8 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
8 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
7 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features
Status:Retired
Estimated Rank:
7 kyu
Fundamentals
Functional Programming
Declarative Programming
Programming Paradigms
Higher-order Functions
Functions
Control Flow
Basic Language Features