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Traits.md
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This is used to defined shared behavior
A *trait* defines the fnctionality a particular type has and can share with other tpyes.
A *trait* defines the functionality a particular type has and can share with other types.
Traits are ued to define shared behavior in an abstract way.
Traits are used to define shared behavior in an abstract way.
We can use *trait bounds* to specifty that a generic type can be any type that has certain behavior
We can use *trait bounds* to specify that a generic type can be any type that has certain behavior
Note: Traits are similar to a feature often called *interfaces* in other languages, but there are some differences in Rust
@ -16,15 +16,15 @@ A type's behavior consists of the methods we can call on that type
Some types can share the same behavior if we can call the same methods on all of those types.
Trait definitions are a way to gropu method singatures together to define a set of behaviors necessary to accomplish something.
Trait definitions are a way to group method signatures together to define a set of behaviors necessary to accomplish something.
Here is an exmaple to lay this out
Here is an example to lay this out
lets say you have multiple structs that hold various kinds and amounts of text
`NewsArticle` struct that holds a news story filed in a particular locaion
`NewsArticle` struct that holds a news story filed in a particular location
`Tweet` that can have, at most, 280 characters along with metadata that indicates whether it was a new tweet, a retweet, or a reply to another tweet
We want to make a meida aggregator library crate named `aggregator` that can display summaries of data that could be stored in a `NewsArticle` or `Tweet`
We want to make a media aggregator library crate named `aggregator` that can display summaries of data that could be stored in a `NewsArticle` or `Tweet`
In order to do this we need a summary from each type, this would be done by calling a `summarize` method on an instance