Using the debugger
It would quite difficult to write non-trivial code without a debugger, so Gallium Data includes one.
Turning the debugger on and off
In the admin app, you simply click on the DEBUG: OFF button in the top bar:
That will activate debug mode, and the debug button will be highlighted:
Important: While waiting at a breakpoint, your server will delay responding to client requests until execution is resumed. If your Gallium Data server seems unresponsive, it could be because it's waiting for you to resume execution.
You set and unset breakpoints simply by clicking in the left gutter of the code editor:
When execution hits a breakpoint, a control panel appears under the text editor:
This control panel includes four icons at the top, which should be familiar to most programmer:
the arrow is for Go: resume execution
the curved arrow is for Step: execute until the next line of code
the down arrow is for Step Into
the up arrow is for Step Out
The control panel also shows the values of variables in the current context. Complex variables can be expanded for further exploration.
You can then turn off debugging mode by clicking on the icon at the top. As long as debug mode is off (i.e. not red), there is no performance penalty.