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Improve awkward phrasing around the kinds of closures #3290

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Apr 19, 2024
Merged

Improve awkward phrasing around the kinds of closures #3290

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Improve awkward phrasing around the kinds of closures
agotsis Aug 5, 2022
8264d69
Ch. 13: `unwrap_or_else` takes all three kinds of closures
chriskrycho Apr 19, 2024
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4 changes: 2 additions & 2 deletions src/ch13-01-closures.md
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Expand Up @@ -329,8 +329,8 @@ Using `FnOnce` in the trait bound expresses the constraint that
`unwrap_or_else` is only going to call `f` at most one time. In the body of
`unwrap_or_else`, we can see that if the `Option` is `Some`, `f` won’t be
called. If the `Option` is `None`, `f` will be called once. Because all
closures implement `FnOnce`, `unwrap_or_else` accepts the most different kinds
of closures and is as flexible as it can be.
closures implement `FnOnce`, `unwrap_or_else` accepts all three kinds of
closures and is as flexible as it can be.

> Note: Functions can implement all three of the `Fn` traits too. If what we
> want to do doesn’t require capturing a value from the environment, we can use
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