Mongo compass exported collection data separator

Why

Sometimes we're doing data migration and want to diff the collection before and after, but the file is too large to be open for editor.

Usage

1. Use MongoDB Compass to export the target collection into ./collections
2. run

   node index.js <readLineLimit?: int>
   

3. Separated records will be placed in ./output/<collection name>/<oid>.json
4. Do the diff you want

Demo