HH\Lib\Dict\merge
Requires the Hack Standard Library to be installed.
Facebook Engineer?
This function is available as Dict\merge() in Facebook's www repository.
Merges multiple KeyedTraversables into a new dict
namespace HH\Lib\Dict;
function merge<Tk as arraykey, Tv>(
KeyedTraversable<Tk, Tv> $first,
KeyedContainer<Tk, Tv> ...$rest,
): dict<Tk, Tv>;
In the case of duplicate keys, later values will overwrite the previous ones.
Time complexity: O(n + m), where n is the size of $first and m is the
combined size of all the ...$rest
Space complexity: O(n + m), where n is the size of $first and m is the
combined size of all the ...$rest
Parameters
Returns
dict<Tk, Tv>