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Functional recipes with JavaScript

A recipe book for functional solutions with JavaScript

Oscar Lodriguez

We will go through array methods known as Filter, Map and Reduce.

We shall also touch the concept of transducers and build them up from basic principles. After that we've got some challenges with composed mutations, and show how we end up with unnecessary data and half-way mutations.

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About

About

About the Book

Master the usage of pure and high order functions to create extensible and composable partial applications whom are easy to test and execute.

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JavaScript

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Author

About the Author

Oscar Lodriguez

A passionate and motivated Software Engineer majored in information technology. Shares a vision for developing semantically and syntactically correct software for mobile and web applications. Loves to keep things SOLID and sports a YAGNI approach.

Contents

Table of Contents

Hola!

  1. Quokka

Why go functional

  1. Before we go any further
  2. Must reads
  3. Book Structure
  4. Imperative Pattern vs Declarative Pattern
  5. Start

Eager and Lazy evaluations

  1. Eager Evaluation
  2. Lazy Evaluation

Filter

  1. Signature
  2. Chaining
  3. Pure functions

Map

  1. Signature
  2. Using Unary functions with maps
  3. Shopping cart
  4. Excel sheet

Reduce

  1. Signature
  2. Voters tally
  3. Object Reducer

Performance

Some more functional concepts

  1. File extension transformer
  2. Higher order functions (HOF)
  3. Compose

Combinators

  1. Transducers
  2. Transduce function
  3. Map function
  4. xReducer function

Ramda

  1. Currying and Partial Applications
  2. To our Ramda implementation
  3. Nicknames part deux

Shopping Cart

Immutability and side-effects

  1. Mutations
  2. Avoiding mutation on a reference

Recipe Finder

Pizza builder

CLI Black Jack

Conclusion

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