Function unique

unique<V>(
arrays: V[] | V[][] | readonly V[] | readonly (readonly V[])[],
comparer?: (a: V, b: V) => boolean,
): readonly V[]
Combines the values of one or more arrays, removing duplicates
```
const v = Arrays.unique([ [1, 2, 3, 4], [ 3, 4, 5, 6] ]);
// [ 1, 2, 3, 4, 5, 6]
```
A single array can be provided as well:
```
const v = Arrays.unique([ 1, 2, 3, 1, 2, 3 ]);
// [ 1, 2, 3 ]
```
By default uses JSON.toString() to compare values.

See also:
- intersection: Overlap between two arrays
- additionalValues: Yield values from an iterable not present in the other
- containsDuplicateValues: Returns true if array contains duplicates
Type Parameters
- V
Parameters
- arrays: V[] | V[][] | readonly V[] | readonly (readonly V[])[]
- comparer: (a: V, b: V) => boolean = ...
  - (a: V, b: V): boolean
    Default comparer function is equiv to checking a === b. Use isEqualValueDefault to compare by value, via comparing JSON string representation.
    
    Parameters
    a: V
    b: V
    Returns boolean
Returns readonly V[]