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Deprecate function.tap #872

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Merged
merged 1 commit into from
Oct 21, 2025
Merged

Deprecate function.tap #872

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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,5 +1,9 @@
# Changelog

## Unreleased

- The `tap` function from the `function` module has been deprecated.

## v0.65.0 - 2025-09-29

- The performance of the `drop_start` function from the `string` module has
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1 change: 1 addition & 0 deletions src/gleam/function.gleam
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Expand Up @@ -9,6 +9,7 @@ pub fn identity(x: a) -> a {
///
/// Useful for running synchronous side effects in a pipeline.
///
@deprecated("This function has been deprecated. You can bind the value you want to tap to a variable instead.")
pub fn tap(arg: a, effect: fn(a) -> b) -> a {
effect(arg)
arg
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