Sequelize classMethods vs instanceMethods

Question

So starting my adventure into all things Node. One of the tools I am trying to learn is Sequelize. So I will start off what I was trying to do:

Answer 1

Although the basics are that instance methods should be used when you want to modify your instance ( ergo row ). I would rather not pollute the classMethods with methods that don't use the class ( ergo the table ) itself.

In your example I would put hashPassword function outside your class and leave it as a helper function somewhere in my utilities module ( or why not the same module but as a normal defined function ) ... like

var hashPassword = function(...) { ... }

...

...

  instanceMethods: { 
     authenticate: function( ... ) { hashPassword( ... ) }
  }