Add unique() method

[ahmedghanem00]

Hi there,

I was in need to filter out the duplicate values from an ArrayCollection, but I couldn't find a method to do that. So I had to use array_unique($collection->toArray()) to get the job done.

Is there any reason to not add an unique() method to do such filtering ?

Thanks

[DouweGnodde]

Yes!
This would suffice:

public function unique()
{
    return $this->createFrom(array_values(array_unique($this->toArray())));
}
    

[spackmat]

I think this is a very good question, would a PR implementing that be appreciated?

[estelsmith]

@spackmat I feel a PR would make the decision easier for maintainers to include the functionality.