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book/redirects/traits.md
Félix Saparelli 0ed0eef71a Highlight recommended path and lowlight the rest 
Instead of placing the link to the recommended resource i.e. the second
edition in second place, push it up to the top of the list. In fact,
push the link to the first edition always at the bottom.

To emphasise even more that's where new visitors should go, bolden the
first link, and make the first-ed link smaller.

All this as well as a slight edit and simplification of the copy is
designed to make the new and recommended resources the primary path
readers take, without hiding the old resource completely.
2017-12-31 18:12:49 +13:00

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% Traits

There is a new edition of the book and this is an old link.

Traits abstract over behavior that types can have in common.

pub trait Summarizable {
    fn summary(&self) -> String;
}

Here are the relevant sections in the new and old books: