Yasiru Viyara

Immutability in JavaScript is a fundamental concept that refers to the idea that once a data structure is created, it cannot be changed. Instead of modifying the original object, a new object is created with the desired changes. This approach has several advantages, such as preventing unintended side effects, making the code easier to reason about, and improving performance in some cases by enabling optimizations like memorization. Here is a detailed explanation of immutability in JavaScript, along with examples: Why Immutability Matters 1. Predictability : Immutable data makes your code more predictable and easier to debug because you can trust that objects do not change over time. 2. Concurrency : Immutability helps in concurrent programming by avoiding issues related to data being changed by multiple threads or processes simultaneously. 3. Undo/Redo : Immutability makes it easier to implement features like undo/redo, as you can keep a history of previous states. Immutability in Java...