In arrays where values are expected to occur only once (such as ID numbers), a search normally ends when a single match is found.

Name: In arrays where values are expected to occur only once (such as ID numbers), a search normally ends when a single match is found.
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In arrays designed to hold unique values like ID numbers, a search for a specific value typically concludes as soon as a match is identified, since no duplicates are expected to exist.

In Arrays Where Values Are Expected to Occur Only Once