Immutability

Immutability is a programming concept where data or objects cannot be modified after they are created. Instead of changing existing data, new versions are created with the desired changes. This principle is fundamental in functional programming and is used to ensure predictable state management and avoid side effects.

Also known as: Immutable data, Immutable objects, Immutable state, Immutability principle, Unchangeable data

Why learn Immutability?

Developers should learn and use immutability when building applications that require high reliability, such as in concurrent or distributed systems, to prevent race conditions and data corruption. It's essential in functional programming languages like Haskell and Elm, and is widely adopted in state management libraries like Redux for JavaScript to maintain predictable application state.

Learning Resources

• docs: MDN Web Docs: Immutability in JavaScript
• tutorial: FreeCodeCamp: Functional Programming Concepts - Immutability
• docs: Redux Documentation: Immutable Update Patterns
• video: YouTube: Immutability in Programming Explained
• book: Book: 'Functional Programming in JavaScript' by Luis Atencio