Maintainable JavaScript with Functional Patterns

Explore functional programming concepts and their application in JavaScript to create more maintainable code in this 53-minute conference talk from the Reliable Web Summit 2021. Discover how to implement core functional programming principles, refactor common code structures, and improve code composition, testing, and future maintenance. Learn about purity, line functions, accumulation functions, cognitive load reduction, immutability, function signatures, function composition, and more. Gain insights into using functions as values and applying techniques like filter and reduce to write cleaner, more efficient JavaScript code.

Introduction
Welcome
Who am I
What we want in programming
Why is JavaScript so hard to maintain
Functional JavaScript
Functional Programming Concepts
Purity
Line Function
Accumulation Function
Cognitive Load
Immutability
Const
Copying
Functions
Function Signatures
Function Composition
Conditional Push
Filter
initialize iterate accumulate
reduce
function as values
summary