# Test for existence of a variable

**URL:** <https://discourse.julialang.org/t/test-for-existence-of-a-variable/42845>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [July 10, 2020, 1:40pm UTC](https://discourse.julialang.org/t/test-for-existence-of-a-variable/42845 "2020-07-10T13:40:32Z")\
**Posts on this page:** 1\
**Showing post:** 24

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**Author:** ![Henrique\_Becker](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/henrique_becker/32/15443_2.png) [@Henrique\_Becker](https://discourse.julialang.org/u/Henrique_Becker)\
**Post date:** [July 14, 2020, 12:29pm UTC](https://discourse.julialang.org/t/test-for-existence-of-a-variable/42845/24 "2020-07-14T12:29:01Z")

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Most of the manual can be found in [this folder](https://github.com/JuliaLang/julia/tree/master/doc/src/manual), the specific file depends on which section you intend to edit.

I wrote a small reply on the process of contributing to a documentation by the Github interface [here](https://discourse.julialang.org/t/use-and-documentation-of-and/39882/7). You just need to ignore the link I pointed there and instead use the link to a file of the folder I linked above.

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