# \#partial-evaluation

**URL:** https://discourse.julialang.org/tag/partial-evaluation/1183.md

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## [How to apply an in-place function to a slice of a vector?](https://discourse.julialang.org/t/how-to-apply-an-in-place-function-to-a-slice-of-a-vector/108520)

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**Author:** [@homocomputeris](https://discourse.julialang.org/u/homocomputeris)\
**Replies:** 11\
**Last updated:** [January 9, 2024, 11:02am UTC](https://discourse.julialang.org/t/how-to-apply-an-in-place-function-to-a-slice-of-a-vector/108520 "2024-01-09T11:02:07Z")

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I want to have an in-place function that takes a vector as an argument and applies another in-place function to a subarray (in general sense). How do I do this? function f!(du, u) println("\\nf called") @show u …

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## [Fixing the Piping/Chaining Issue](https://discourse.julialang.org/t/fixing-the-piping-chaining-issue/89654)

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**Author:** [@uniment](https://discourse.julialang.org/u/uniment)\
**Replies:** 212\
**Last updated:** [January 16, 2023, 5:45am UTC](https://discourse.julialang.org/t/fixing-the-piping-chaining-issue/89654 "2023-01-16T05:45:00Z")

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Objective To satisfy Julia’s piping/chaining/currying/partial application problem with an elegant and functional approach worthy and idiomatic of Base Julia. If you want, skip the background reading material straight do…

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## [Fixing the Piping/Chaining/Partial Application Issue (Rev 2)](https://discourse.julialang.org/t/fixing-the-piping-chaining-partial-application-issue-rev-2/90408)

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**Author:** [@uniment](https://discourse.julialang.org/u/uniment)\
**Replies:** 40\
**Last updated:** [November 26, 2022, 3:15am UTC](https://discourse.julialang.org/t/fixing-the-piping-chaining-partial-application-issue-rev-2/90408 "2022-11-26T03:15:25Z")

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Starting this thread anew to avoid confusion, because I changed my mind on which approach I support partway through a long thread (sorry!). It’s also useful to distill some of the last thread’s learnings. Thank you to a…

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## [Partial Application brackets without underscores](https://discourse.julialang.org/t/partial-application-brackets-without-underscores/90565)

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**Author:** [@christophE](https://discourse.julialang.org/u/christophE)\
**Replies:** 5\
**Last updated:** [November 21, 2022, 12:01pm UTC](https://discourse.julialang.org/t/partial-application-brackets-without-underscores/90565 "2022-11-21T12:01:14Z")

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After years I understand the idea behind the proposal of PR 24990. It wants to bring partial application (or currying) to Julia which is much overdue. I thought previously, \_ is merely a crutch to be eventually used for…