Data Validation and Sanitization: Part II

The video tutorial covers two main challenges: improving the user and task models using Mongoose. The first challenge involves adding a password field to the user model, ensuring it is a required string, trimming spaces, and validating it does not contain the word 'password'. The second challenge focuses on the task model, requiring the description to be trimmed and mandatory, while the completed field is optional with a default value of false. The tutorial includes testing these implementations to ensure they work as expected.

What new insight or understanding did you gain from this video?