I would just like to know if I could get any details in the server-side scripting "ERROR" message in my EVAL[], document template; for instance I already got typos or incorrect use of Appxys function.
Please run body of EVAL[] block in any Formula debugger.
usually I already applying it in debugging queries, but how about knowing at what line did I getting errors in terms of plotting the data especially of pre-formatting it in HTML?
When you run EVAL[] in Formula Debugger it will show you parsed JavaScript and result of execution. Use String as return type.
In 3.9.0 release you can use special debugger for EVAL blocks.