# \#function-like-object

**URL:** https://discourse.julialang.org/tag/function-like-object/1398.md

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## [Mutating function-like objects, enforcing "!"?](https://discourse.julialang.org/t/mutating-function-like-objects-enforcing/101825)

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**Author:** [@tamasgal](https://discourse.julialang.org/u/tamasgal)\
**Replies:** 6\
**Last updated:** [July 21, 2023, 11:38am UTC](https://discourse.julialang.org/t/mutating-function-like-objects-enforcing/101825 "2023-07-21T11:38:28Z")

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For many users, this is probably a minor bike-shed thing but I wanted to dump it ;) maybe it’s even a bug or let’s say, design flaw (see at the end), no idea. I use function-like objects a lot in my packages and I const…