HH\Lib\Vec\intersect

This API is part of the Hack Standard Library, not HHVM itself.

Returns a new vec containing only the elements of the first Traversable that appear in all the other ones

namespace HH\Lib\Vec;

function intersect<Tv as arraykey>(
    Traversable<Tv> $first,
    Traversable<Tv> $second,
    Traversable<Tv> ...$rest,
): vec<Tv>;

Duplicate values are preserved.

Parameters