Schema.reserved

Type:

• «property»

Reserved document keys.

Keys in this object are names that are rejected in schema declarations because they conflict with Mongoose functionality. If you create a schema using new Schema() with one of these property names, Mongoose will throw an error.

• _posts
• _pres
• collection
• emit
• errors
• get
• init
• isModified
• isNew
• listeners
• modelName
• on
• once
• populated
• prototype
• remove
• removeListener
• save
• schema
• toObject
• validate

NOTE: Use of these terms as method names is permitted, but play at your own risk, as they may be existing mongoose document methods you are stomping on.

const schema = new Schema(..);
 schema.methods.init = function () {} // potentially breaking