NAME

keys() - return an array of the keys from the (key, value) pairs in a mapping

SYNOPSYS

mixed * keys(mapping m)

DESCRIPTION

keys() returns an array of keys (indices) corresponding to the keys in the (key, value) pairs stored in the mapping m.

For example, if: 

mapping m;
m = (["hp" : 35, "sp" : 42, "mass" : 100]);

then

keys(m) == ({"hp", "sp", "mass"})
Note: the keys will not be returned in any apparent order. However, they will be returned in the same order as the corresponding values (returned by the values() efun).

SEE ALSO

values(3) , each(3)