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What does "set" mean in programming?
set 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
A collection of unique values with no duplicates. Sets are useful for membership tests (is this value in the set?) and removing duplicates from a list. Sets do not guarantee order.
Example
"Use a set to track which user IDs have already been processed."
Related terms
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