HH\Lib\Dict\merge

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

Merges multiple KeyedTraversables into a new dict

Description

namespace HH\Lib\Dict;

function merge<Tk as arraykey, Tv>(
  KeyedTraversable<Tk, Tv> $first,
  KeyedTraversable<Tk, Tv> ...$rest,
): dict<Tk, Tv>;

In the case of duplicate keys, later values will overwrite the previous ones.

Parameters