Function union

union<T>(values, key?): ReadonlyArray<T>
Creates an array of unique values that are included in all given arrays.
Type Parameters
- T
Parameters
- values: readonly (readonly T[])[]
- Optionalkey: ((value: T) => unknown)
  - - (value): unknown
    - Parameters
      value: T
      Returns unknown
Returns ReadonlyArray<T>
Example
```
intersection([[2, 1], [2, 3]])
// [2]
```
- Defined in src/array.ts:540
union<T>(values, key?): T[]
Type Parameters
- T
Parameters
- values: T[][]
- Optionalkey: ((value: T) => unknown)
  - - (value): unknown
    - Parameters
      value: T
      Returns unknown
Returns T[]
- Defined in src/array.ts:544