Answer
Mongoose validates data using schema rules such as types, required fields, enums, and custom validators.
Quick Answer
Mongoose schemas define what fields a document can have, their types, and validation rules (required, minLength, enum values). When you call save() or create(), Mongoose validates the data against the schema before inserting. Schema-level validators run in JavaScript — they don't replace database-level constraints but catch most common errors early.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ