Q: Do you recommend minimizing your js files?
Q: Is this a sandbox solution?
A: (I’m assuming the question is about the CKS:ScriptLibrary solution I demonstrated). Yes. The CKS:Script Library is fully sandbox-compatible.
Q: Is SOD (Script On-Demand) available in sandbox solution?
A: Yes. The only related thing that is not is the ScriptLink control.
Q: SP in the first line…SP.ExceptionHandlingScope that is in what library?
Q: What other method of loading JS files is there besides Visual Studio solutions if you don’t want to use CEWP…?
A: A VS Solution is really the best method of getting the .js files placed on the server. My (distant) second choice would be manually loading them into the script library manually via the browser. The (evil) CEWP comes into play when you’re talking about referencing script files on a given page. At that point, I would recommend a Custom Action, editing your Master Page, adding it via a web part, or just about any means except using the CEWP.