Interface PropDesc

The value associated with the property. Can be any valid JavaScript value (number, object, function, etc).

An optional callback that acquires a Getter Property.

An optional callback that assign a Setter Property

true if and only if this property shows up during enumeration of the properties on the corresponding object.

true if and only if the value associated with the property may be changed with an assignment operator.

true if and only if the type of this property descriptor may be changed or deleted from the corresponding object.