HH\Lib\Dict\filter_with_key

This API is part of the Hack Standard Library, not HHVM itself.
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This function is available as Dict\filter_with_key() in Facebook's www repository.

Just like filter, but your predicate can include the key as well as the value

Description

namespace HH\Lib\Dict;

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

To use an async predicate, see Dict\filter_with_key_async().

Parameters