new Backbone.Model() vs Backbone.Model.extend()

Question

I\'m new to JS and Backbone

What\'s the difference between these two?

TestModel = new Backbone.Model({ title: \"test title\" })
TestModel = Backbone.         


        

Answer 1

In the second case TestModel is a contructor which you can use several times later to create an instance of model:

var model = new TestModel();

However passing title to extend has a different meaning. You should probably use:

var TestModel = Backbone.Model.extend({defaults: { title: "test title" }});

or pass the model attributes when creating an object:

var model = new TestModel({ title: "test title" });

In the first case on the other hand TestModel is already an instance of model (hence it should be named testModel to follow JavaScript naming convention):

var testModel = new Backbone.Model({ title: "test title" })