Locating and Exploring Class Reference Documentation
Class reference documentation is always available on any system on which InterSystems IRIS (or any product on which it is based) is installed. This class reference includes information on InterSystems classes as well as your own classes.
To view the class documentation, open a web browser and navigate to
where <webServerPortNumber> is the port number of the web server used by InterSystems IRIS.
In the left menu, classes in the %SYS namespace are displayed by default. To change the namespace, select an option from the Namespace: dropdown at the top left.