keys(3)

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)