# How to reference argument of expression

**URL:** <https://discourse.julialang.org/t/how-to-reference-argument-of-expression/80213>\
**Category:** New to Julia\
**Tags:** macros, metaprogramming\
**Created:** [April 28, 2022, 1:45pm UTC](https://discourse.julialang.org/t/how-to-reference-argument-of-expression/80213 "2022-04-28T13:45:46Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\
**Post date:** [April 28, 2022, 4:56pm UTC](https://discourse.julialang.org/t/how-to-reference-argument-of-expression/80213/3 "2022-04-28T16:56:40Z")

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See: [Assignment and mutation - #4 by StefanKarpinski](https://discourse.julialang.org/t/assignment-and-mutation/19119/4)

(As usual, I would encourage you to [think twice about doing metaprogramming](https://discourse.julialang.org/t/how-to-warn-new-users-away-from-metaprogramming/35022/22), especially when you are still learning the basics of Julia.)

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