General Users Guide
Using Ext-Scripting once properly setup is straight forward. Usually it comes down to editing, reloading on the browser editing, reloading the page, .... However if you edit within a running configurations keep an eye on the console/log output. All compile errors and messages go automatically into the log.
Image: Development Lifecycle
The development cycle also can seen in the following video and in the following videos in the Users Guide.
Video: Development Lifecycle in Action
As you can see, there is no need for any recompile anymore, no server restart everything is done dynamically, and you get instant results.