14 lines
271 B
Markdown
14 lines
271 B
Markdown
### union
|
|
|
|
Returns every element that exists in any of the two arrays once.
|
|
|
|
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]));
|
|
```
|
|
|
|
```js
|
|
union([1, 2, 3], [4, 3, 2]); // [1,2,3,4]
|
|
```
|