(help &optional (topic 'help))
help is the same as
help starts the help system and shows help on the
symbol or string
/ Opens a subwindow to enter the name of another topic. Press ESC to cancel. Press ENTER to go to the topic. LEFT Go backward in the topic list. RIGHT Go forward in the topic list. ESC Dismiss the help system.
(help prototype:keys) (help car)
In the REPL, type
prototype:<TAB> to get the completion list of symbols for
package of the class
<ENTER> to select a class member
and then press
<F1> to get help for the symbol that is in front of the cursor.