Gives values present in any array.
npm install @extra-array/union-update.minGives values present in any array.
:package:
:smiley_cat:
:running:
:vhs:
:moon:
:scroll:
:newspaper:
:blue_book:
> Alternatives: [union], [union$].
> Similar: [union], [intersection], [difference], [symmetricDifference].
> This is part of package [extra-array].
[extra-array]: https://www.npmjs.com/package/extra-array
> This is browserified, minified version of [@extra-array/union-update].
> It is exported as global variable array_union$.
> CDN: [unpkg], [jsDelivr].
[@extra-array/union-update]: https://www.npmjs.com/package/@extra-array/union-update
[unpkg]: https://unpkg.com/@extra-array/union-update.min
[jsDelivr]: https://cdn.jsdelivr.net/npm/@extra-array/union-update.min
``javascript`
array.union$(x, y, [fc], [fm]);
// x: an array (updated)
// y: another array
// fc: compare function (a, b)
// fm: map function (v, i, x)
// → x
> :stopwatch: Compare function => O(n²).
`javascript
const array = require("extra-array");
var x = [1, 2, 3, 4];
var y = [2, 3, 5];
array.union$(x, y);
// [ 1, 2, 3, 4, 5 ]
x;
// [ 1, 2, 3, 4, 5 ]
var x = [1, 2, 3, 4];
var y = [-2, -3, -5];
array.union$(x, y, (a, b) => Math.abs(a) - Math.abs(b));
// [ 1, 2, 3, 4, -5 ]
var x = [1, 2, 3, 4];
array.union$(x, y, null, v => Math.abs(v));
// [ 1, 2, 3, 4, -5 ]
``
- Data.Set.union: Haskell
- Set.union: Python
- _.union: lodash
- _.unionBy: lodash
- _.unionWith: lodash
- Array.union: sugarjs
[union]: https://github.com/nodef/extra-array/wiki/union
[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
[symmetricDifference]: https://github.com/nodef/extra-array/wiki/symmetricDifference