Unleash JavaScript's Potential with Functional Programming

JavaScript supports both Object-Oriented Programming (OOP) and Functional Programming (FP), enabling developers to write more modular, deterministic, and testable code. Key concepts such as pure functions, immutability, closures, higher-order functions, and declarative programming are fundamental to FP. The post explains these concepts in detail and demonstrates practical applications using JavaScript's array methods like map, filter, and reduce. Additionally, it highlights important principles like function composition, currying, and data privacy, aiming to transform the way you write JavaScript code.

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Oct 03, 2024•25m read time•From janhesters.com

Table of contents

Definition Primitives Composite Data Types Functions Methods Noop Pure Functions Idempotence Referential Transparency Why Do You Need Functions?Functional Programming Prerequisites First-Class Functions Higher-Order Functions Closure Imperative vs. Declarative Immutability Abstraction Array methods Expressions Over Statements Function composition trace Currying Partial Application Data First vs. Data Last Data Needs To Line Up Mozart