From 173bb14140c5530cbdb59e53ace3991a99d804af Mon Sep 17 00:00:00 2001 From: Dan Wilhelm Date: Thu, 28 May 2020 20:21:33 -0700 Subject: [PATCH] feat: Add traits README --- exercises/traits/README.md | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 exercises/traits/README.md diff --git a/exercises/traits/README.md b/exercises/traits/README.md new file mode 100644 index 00000000..1ce46fe0 --- /dev/null +++ b/exercises/traits/README.md @@ -0,0 +1,20 @@ +### Traits + +A trait is a collection of methods. + +Data types can implement traits. To do so, the methods making up the trait are defined for the data type. For example, the `String` data type implements the `From<&str>` trait. This allows a user to write `String::from("hello")`. + +In this way, traits are somewhat similar to Java interfaces and C++ abstract classes. + +Some additional common Rust traits include: + ++ `Clone` (the `clone` method), ++ `Display` (which allows formatted display via `{}`), and ++ `Debug` (which allows formatted display via `{:?}`). + +Because traits indicate shared behavior between data types, they are useful when writing generics. + + +#### Book Sections + +- [Traits](https://doc.rust-lang.org/book/ch10-02-traits.html) \ No newline at end of file