Immutability in React is a concept that prevents objects from being altered after creation, offering benefits such as improved performance and easier debugging by simplifying the detection of changes and minimizing unnecessary DOM updates. The article explores the implementation of immutability in React, detailing how JavaScript methods like Object.assign, the spread operator, and libraries such as Immutable.js can be used to maintain immutability, despite JavaScript's inherently mutable nature. It discusses the trade-offs involved, noting that while immutability can enhance app performance and reduce unexpected side effects, it can also introduce complexity and performance issues when using third-party libraries or handling large objects and arrays. The concept is crucial for React developers, as it aligns with the framework's principles and aids in managing state effectively, especially in scenarios involving undo/redo functionality or integrating with systems like Redux. Despite its advantages, immutability requires careful consideration of methods and tools used to enforce it, as well as an understanding of the potential learning curve and performance implications.