@extra-array/intersection.min

Gives values present in both arrays.
:package:
:smiley_cat:
:running:
:vhs:
:moon:
:scroll:
:newspaper:
:blue_book:

> Similar: [union], [intersection], [difference], [symmetricDifference].

> Similar: [isUnique], [isDisjoint], [intersection].

> This is part of package [extra-array].

[extra-array]: https://www.npmjs.com/package/extra-array

> This is browserified, minified version of [@extra-array/intersection].

> It is exported as global variable array_intersection.

> CDN: [unpkg], [jsDelivr].

[@extra-array/intersection]: https://www.npmjs.com/package/@extra-array/intersection
[unpkg]: https://unpkg.com/@extra-array/intersection.min
[jsDelivr]: https://cdn.jsdelivr.net/npm/@extra-array/intersection.min

``javascript
array.intersection(x, y, [fc], [fm]);
// x: an array
// y: another array
// fc: compare function (a, b)
// fm: map function (v, i, x)
`
> :stopwatch: Compare function => O(n²).

`javascript
const array = require("extra-array");

var x = [1, 2, 3, 4];
var y = [2, 3, 5];
array.intersection(x, y);
// [ 2, 3 ]

var y = [-2, -3, -5];
array.intersection(x, y, (a, b) => Math.abs(a) - Math.abs(b));
// [ 2, 3 ]

array.intersection(x, y, null, v => Math.abs(v));
// [ 2, 3 ]
``

References

- Data.Set.intersection: Haskell
- Set.intersection: Python
- _.intersection: lodash
- _.intersectionBy: lodash
- _.intersectionWith: lodash
- Array.intersect: sugarjs

[union]: https://github.com/nodef/extra-array/wiki/union
[intersection]: https://github.com/nodef/extra-array/wiki/intersection
[difference]: https://github.com/nodef/extra-array/wiki/difference
[isUnique]: https://github.com/nodef/extra-array/wiki/isUnique
[isDisjoint]: https://github.com/nodef/extra-array/wiki/isDisjoint
[symmetricDifference]: https://github.com/nodef/extra-array/wiki/symmetricDifference