Trait CollectJoin 

pub trait CollectJoin {
    // Provided methods
    fn join(&mut self, separator: &str) -> String
       where Self: Iterator,
             <Self as Iterator>::Item: ToString { ... }
    fn to_vec(self) -> Vec<<Self as Iterator>::Item>
       where Self: Iterator + Sized { ... }
}

This trait provides a shortcut for two commonly used iterator adapters.

• join(…): joins ToString items into a Vec::<String> by inserting a separator between them.
• to_vec(…): equivalent to .collect::<Vec<_>>()

Provided Methods

fn join(&mut self, separator: &str) -> String

where Self: Iterator, <Self as Iterator>::Item: ToString,

Iterator adapter that joins ToString items into a Vec::<String> by inserting separator between them.

Example

let numbers = (0..10).filter(|&x| x < 5).join(", ");
assert_eq!(numbers, "0, 1, 2, 3, 4");

fn to_vec(self) -> Vec<<Self as Iterator>::Item>

where Self: Iterator + Sized,

Iterator adapter that joins items into a Vec<_>; equivalent to .collect::<Vec<_>>()

Example

let values = [1, 5, 10, 25, 50].into_iter().map(|x| x * x).to_vec();
assert_eq!(values, vec![1, 25, 100, 625, 2500]);

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<I: Iterator> CollectJoin for I