HH\Lib\Keyset\filter_nulls

Requires the Hack Standard Library to be installed.

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This function is available as Keyset\filter_nulls() in Facebook's www repository.

Returns a new keyset containing only non-null values of the given Traversable

namespace HH\Lib\Keyset;

function filter_nulls<Tv as arraykey>(
  Traversable<?Tv> $traversable,
): keyset<Tv>;

Time complexity: O(n) Space complexity: O(n)

Parameters