Chapter 4. Toward modular, reusable code

This chapter covers

  • Comparing function chains and pipelines
  • Introducing the Ramda.js functional library
  • Exploring the concepts of currying, partial application, and function binding
  • Creating modular programs with functional composition
  • Enhancing your program’s flow with function combinators

A complex system that works is invariably found to have evolved from a simple system that worked.

John Gall, The Systems Bible (General Systemantics Press, 2012)

Modularity is one of the most important qualities of large software projects; it represents the degree to which programs can be separated into smaller, independent parts. Modular programs posses the distinct quality that their meaning can be derived from ...

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