The new JSON functions included in FileMaker 16 give us a hardened, built-in grammar for passing multiple script parameters. This a big win for making it easier to share scripts between developers (and between files) and for making scripts more readable.
We've put together a guide to the new JSON functions and have published an example file with some scripts and best practices. There are some surprising behaviors among these functions and you'll see lots of examples in the guide.
The guide and example file are available here: https://www.seedcode.com/filemaker-16-json-script-parameters
We hope you find it useful.
Big thanks for KC Embery at SeedCode for putting this together!