Functional Programming

Go To References #

• GeeksforGeeks - Functional Programming Paradigm - Overview of the mathematical basis of functional programming, the Lambda Calculus, and five key concepts:
  • Pure functions: always obtain the same output for the same inputs without any side effects
  • Recursion: use of recursive definitions with a base case instead of for or while loops
  • Referential transparency: no reuse of variables
  • Functions are First-Class / Higher-Order: can pass functions into other functions as parameters
  • Variables are Immutable: no changing of variables

Videos #

• Coding Tech - Functional Programming Basics In ES6 - Nice demonstration of functional programming concepts bulit into Javascript:
  • let vs const for variable immutability
  • arrow function syntax
  • variable number of arguments, destructuring, and default parameter values
  • object merging with Object.assign()
  • making arrays immutable with Object.freeze()