HH\Lib\Dict\partition

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

Returns a 2-tuple containing dicts for which the given predicate returned true and false, respectively

namespace HH\Lib\Dict;

function partition<Tk as arraykey, Tv>(
  KeyedTraversable<Tk, Tv> $traversable,
  (function(Tv):bool) $predicate,
): (dict<Tk,Tv>,dict<Tk,Tv>);

Parameters