How to extend the Schema in Mongoose?

Question

I would like to add a static method to the Schema class, how do I do without changing the main Schema class?

thanks

Answer 1

This is how the website documents it:

// assign a function to the "statics" object of our animalSchema
 animalSchema.statics.findByName = function (name, cb) {
 this.find({ name: new RegExp(name, 'i') }, cb);
}