https://crates.io/crates/itertools
The Rust itertools crate is a third-party library that provides a powerful set of tools for working with iterators in Rust. It offers a wide range of functions and macros for manipulating and combining iterators, making it easier and more efficient to work with collections of data in Rust.
The itertools crate provides:
-
iteration functions that can be used to manipulate and transform iterators
-
combinator functions that can be used to generate new iterators from existing iterators
-
macros that can be used to simplify the code required to work with iterators
Example:
use itertools::{Itertools, join};
fn main() {
// Demo data
let numbers = vec![1, 2, 3];
let letters = vec!['a', 'b', 'c'];
// Use the "join" macro to flatten lists into one string
let joined = join(letters, ", ");
println!("{:?}", joined);
// Use the combinator functions to mix iterators
for (n, l) in numbers.iter()
.cartesian_product(letters.iter()) {
println!("{}{}", n, l);
}
}