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What does "immutability" mean in programming?
immutability is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
The practice or design property of not allowing data to change after creation. Immutable data is easier to reason about, inherently thread-safe, and free from accidental side effects. A core concept in functional programming and React state management.
Example
"Using immutable objects for shared state eliminates race conditions — no thread can modify what another is reading."
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