overview

underscore-rust is utility library for rust. Inspired by underscore.js.

usage

underscore-rust expands std library. You can use the same as standard library.

use underscore::vec::VecU;

let sample = vec!(1i, 2, 3);
assert_eq!(1i, *sample.first().unwrap());

use underscore::hashmap::HashMapU;

let mut sample = HashMap::new();
sample.insert(1i, 1u);
sample.insert(2i, 2u);
let inverted = sample.invert();
// => HashMap { 1u: 1i, 2u: 2i }

use underscore::btreemap::BTreeMapU;

let mut sample = BTreeMap::new();
sample.insert(1i, 1u);
sample.insert(2i, 2u);
let inverted = sample.invert();
// => BTreeMap { 1u: 1i, 2u: 2i }

underscore-rust now expands only Vec, HashMap, BTreeMap.

document

detail document is here.

• http://gong023.github.io/underscore-rust/underscore/index.html

std library

rust already has many functions of underscore.js at std library. If you are looking for them, take a look at official document.

• initial
• collections::vec::Vec::init
• last
• collections::vec::Vec::last
• rest
• collections::vec::Vec::tailn
• union
• collections::vec::Vec::add
• range
• std::iter::range
• map
• std::iter::Map::map
• reduce
• std::iter::Scan::scan
• find
• std::iter::Filter::find
• filter
• std::iter::Filter::filter
• every
• std::iter::Iterator::all
• some
• std::iter::Iterator::any
• contains
• collections::vec::Vec::contains etc
• max
• core::slice::Items::max_by
• min
• core::slice::Items::min_by
• sortBy
• collections::vec::Vec::sort_by
• shuffle
• std::rand::Rng::shuffle
• sample
• std::rand::sample
• size
• std::collections::Collection::len
• keys
• collections::btree::map::BTreeMap::keys
• values
• collections::BTreeMap::values
• has
• collections::BTreeMap::contains_key

underscore-rust appends below functions.

• pairs
• invert
• pick
• omit
• defaults
• first
• without
• intersection
• uniq
• indexOf
• lastIndexOf