# Trying to use isdigit

**URL:** <https://discourse.julialang.org/t/trying-to-use-isdigit/66169>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [August 11, 2021, 4:30am UTC](https://discourse.julialang.org/t/trying-to-use-isdigit/66169 "2021-08-11T04:30:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dgpdx](https://avatars.discourse-cdn.com/v4/letter/d/45deac/32.png) [@dgpdx](https://discourse.julialang.org/u/dgpdx)\
**Post date:** [August 11, 2021, 4:30am UTC](https://discourse.julialang.org/t/trying-to-use-isdigit/66169/1 "2021-08-11T04:30:34Z")

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## I’m trying to use isdigit in Julia but I keep getting “isdigit not found.” Which package is isdigit located in? I’ve added Strings and Unicode packages to no avail

Don Groves

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**Author:** ![dgpdx](https://avatars.discourse-cdn.com/v4/letter/d/45deac/32.png) [@dgpdx](https://discourse.julialang.org/u/dgpdx)\
**Post date:** [August 11, 2021, 4:32am UTC](https://discourse.julialang.org/t/trying-to-use-isdigit/66169/2 "2021-08-11T04:32:44Z")

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Never mind. Now isdigit seems to work. Strangeness…