Iterates over all members of object and calls func on
each one of them.
It is safe to change the value of a member of the oobject
from within the iterator function, but it is not safe to add or
remove members from the object.
The order in which the object members are iterated is the
insertion order.
Iterates over all members of object and calls func on each one of them.
It is safe to change the value of a member of the oobject from within the iterator function, but it is not safe to add or remove members from the object.
The order in which the object members are iterated is the insertion order.