Sort By

Convenience functions that allow for sorting iterators.

Example

```rust use sortby::*;

[derive(Clone, Debug, Eq, PartialEq)]

struct Person { pub age: i32, pub name: &'static str, }

fn main() { let data = vec![ Person { name: "Rich", age: 18, }, Person { name: "Bob", age: 9, }, Person { name: "Marc", age: 21, }, Person { name: "Alice", age: 18, }, ];

let sorted: Vec<_> = data.iter() .sortbydesc(|p| p.age) .thensortby(|p| p.name) .collect();

println!("{:#?}", sorted); } ```