redss,
For a more comprehensive explanation of the various ways to find things in an array, take a look at Getting Matching Items From An Array. Also see The fastest way of searching a certain element in an array which addresses your specific question.

Cheers - L~R

In reply to Re: how to quickly tell if number is in an array by Limbic~Region
in thread how to quickly tell if number is in an array by redss

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