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Add section on merging keyword arguments #948

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Oct 16, 2024
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Add section on merging keyword arguments #948

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13 changes: 13 additions & 0 deletions README.adoc
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Expand Up @@ -3167,6 +3167,19 @@ def some_method(bar: false)
end
----

=== Merging Keyword Arguments [[merging-keyword-arguments]]

When passing an existing hash as keyword arguments, add additional arguments directly rather than using `merge`.
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It'd be nice to extend this rationale a bit, as it's not clear why this is preferable, but I'll merge this as is for now.


[source,ruby]
----
# bad
some_method(**opts.merge(foo: true))

# good
some_method(**opts, foo: true)
----

=== Arguments Forwarding [[arguments-forwarding]]

Use Ruby 2.7's arguments forwarding.
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