Sequence 17 — Functional Programming

Pure functions, immutability, higher-order functions, map/filter/reduce, lambda expressions and function composition — deliberately contrasted against the procedural and object-oriented work in Sequence 11. AQA 4.12.

Introduction to Functional Programming

  • Explain the characteristics of functional programming
  • Compare it with procedural and object-oriented paradigms
Lesson ready

Pure Functions, Immutability and Recursion

  • Explain pure functions and immutable data
  • Identify unintended mutation and hidden state in given code
Lesson ready

Higher-Order Functions

  • Explain how higher-order functions improve code reuse and readability
  • Apply map, filter and lambda expressions to transform and select data
Lesson ready

Evaluating Functional Programming

  • Evaluate the advantages, disadvantages and applications of functional programming within modern software development
  • Compare procedural, object-oriented and functional solutions to the same problem against explicit constraints
Lesson ready