XPages: SSJS code snippet that lets you parse/stringify JS<->JSON

Update: I got word from Philippe Riand that fromJson/toJson/isJson is implemented in the XPages runtime. Apparently it has been available from 8.5.1.

Example usage:
var json = toJson( {a:[1,2,3]} ) //-> '{"a":[1,2,3]}'
var jsObj = fromJson( '{"a":[1,2,3]}' ) //-> {a:[1,2,3]}
isJson( '{"a":[1,2,3]}' ) //-> true
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A while back, I ported a script written for Rhino to SSJS that lets you parse JSON to JS objects/serialize JS objects to a JSON string. I've found it quite useful, so I thought I should share it with you.

I can't remember where I found the Rhino script, but the original source code that the Rhino script is based on is linked to at the bottom of this page: http://www.json.org/js.html

The original script was written/maintained by Douglas Crockford, and should prevent script injection, e.g. database.getAllDocuments().removeAll(true).

The script

Share and enjoy!