hasOwnProperty: is used to determine whether an object has a property of an object or give your name. But note that this method can not check the object's prototype chain has a property, the property must be a member of the object itself. Format is as follows:
Js Code
1. object.hasOwnProperty (proName);
object.hasOwnProperty (proName);
Analyzing proName name is not an object or object attribute object.
Returns true, or false;