I recently tried the tool bson (npm i bson) and read this document: https://docs.mongodb.com/realm/functions/json-and-bson/#std-label-ejson
and noticed that in the example some of the keys are not double quoted, like “submittedAt” and “answer”. But when I copy and paste the code and test locally, I got an error says: unexpected token on the position of the property name “answer”. So what is the problem?
Node.js version: v10.15.0