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What does "tuple" mean in programming?
tuple 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
An ordered, immutable collection of elements. Tuples cannot be changed after creation. They are used when you need a fixed grouping of values, like coordinates (x, y) or a function returning multiple values.
Example
"Return a tuple of (success, error_message) so the caller knows both the result and the reason."
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