JSON.parse function missing

In Airtable, the string field is used to contain a json string. Is it possible to parse this string into a json? Using javascript, it would be easy with JSON.parse to do this. However, Appgyver does not seem to have this function. Is there another way to make this conversion? Please help!

What does ENCODE_JSON() do?

I am actually looking to do the reverse of ENCODE_JSON. So convert a text into JSON. Apologies, does ENCODE_JSON do that? Michael