If you are just starting to learn Wolfram Language, how's that going? Do you have any seemingly simple question that you would like to ask?
The Wolfram Desktop Front End is very helpful actually.
For those that have been developing code with Wolfram Language for longer, do you use Paclets or AddOns or other Binaries in your code or workflow? Do you use a command line interface? Do you use a Raspberry Pi? What are you currently learning about?
After writing some code to create a platform for myself, it's neat to find functions like GeneralUtilities`SetUsage and FE`Evaluate[FEPrivate`$StartTimes]. And it's neater when we realize that the ecosystem of available code is continuously being developed.
Here's something to explore:
SystemOpen@FileNameJoin@{$InstallationDirectory,"/SystemFiles/Links/JLink/Documentation/JavaDoc/com/wolfram/jlink/MathLink.html"};
PacletFind[]; (* only installed *)
RandomChoice[PacletFind[]][All];
$ContextPath;
Contexts[];
Names[ "System`*" ]; (* only top level *)
Names[ "System`" ~~ __ ]; (* includes subcontexts *)
Names[ "Developer`*" ];
Names[ "GeneralUtilities`*" ];
Names[ StartOfString~~WordCharacter..~~"`"~~__ ];
GeneralUtilities`PrintDefinitions;