In this blog post, we look at the ECMAScript proposal “JSON.parse source text access” by Richard Gibson and Mathias Bynens. It gives access to source text to two kinds of callbacks: Revivers, callbacks that are passed to JSON.parse() and post-process the data it parses. Replacers, callbacks that are passed to JSON.stringify() and pre-process data before it is stringified. We’ll examine how exactly that works and what you can do with this feature....