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30-seconds-of-code/snippets/array-union.md
2017-12-14 19:38:11 +02:00

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### Array union
Create a `Set` with all values of `a` and `b` and convert to an array.
```js
const union = (a, b) => Array.from(new Set([...a, ...b]));
// union([1,2,3], [4,3,2]) -> [1,2,3,4]
```