JSPM

An array is a collection of values, stored contiguously.

Methods look like:

• sort(): dont modify the array itself (default).
• sort$(): modifies the array for performance reasons (update).
• sortOn(): accepts a map function for faster comparision (map).
• sortOn$(): accepts a map function, modifies the array (map-update).

I find this map-approach beautiful, which i learned from Haskell's sortOn(). You can notice that i have followed Javascript naming scheme as far as possible. Some names are borrowed from Haskell, Python, Java, Processing. Each method is also available as separate package for use by bundling tools, like browserify, rollup, uglify-js.

Stability: Experimental.

const array = require('extra-array');

array.get([1, 2, 3], -1);
// 3

var a = [1, 2, 3, 4];
array.swap(a, 0, 1);
// [2, 1, 3, 4]

var a = [1, 2, 3, 4];
array.rotate(a, 1);
// [4, 1, 2, 3]

array.bsearch([1, 3, 5, 7], 5);
// 2                 ^ found

[...array.permutations([1, 2, 3])];
// [
//   [ 1, 2, 3 ],
//   [ 2, 1, 3 ],
//   [ 1, 3, 2 ],
//   [ 3, 1, 2 ],
//   [ 2, 3, 1 ],
//   [ 3, 2, 1 ]
// ]

reference

Browserified, minified version of this package is extra-array.min.