Adds extra properties to an object based on the properties owned by other specified objects.
This function is valid in
v2.0.0 to v2.14.3.
This function has been downloaded 4 times.
Object to be modified.
One or more arguments where each one's properties will be added to
A reference to
This function requires the following function which is included automatically:
Every object descended from Object inherits the hasOwnProperty method. This method can be used to determine whether an object has the specified property as a direct property of that object; unlike the in operator, this method does not check down the object's prototype chain.