Copies the specified properties from the source object to the target object.
This function is valid in
This function has been downloaded 5 times.
Target object to which the properties will be copied.
Source object from which the properties will be copied.
Array of keys for the properties that should be copied from source to target.
Indicates whether properties that dont exist should be deleted between objects. If
true, non-existent properties will be set to
Returns a reference to