# 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:** 33

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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, 1:48pm UTC](https://discourse.julialang.org/t/test-for-existence-of-a-variable/42845/33 "2020-07-14T13:48:12Z")

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I did not say to click the “Code” tab (clicking it does not remove you from the page of the file to the front page of the project?). I checked now and if you have a very high level of zoom the dropdown does not show “Tree” but instead just the commit code (screenshot below).

 ![2020-07-14-10:47:28_1920x1080](https://global.discourse-cdn.com/julialang/original/3X/d/1/d1a274abb0cfe5205db4acaff88b8e74a1435986.png)  
You were able to make the edit?

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