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What does "reusability" mean in programming?
reusability 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 degree to which code, components, or modules can be used in multiple places or applications without modification. Increases with clear abstractions, loose coupling, and well-defined interfaces.
Example
"The auth library has high reusability — it powers five different internal products."
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