Backbone Views should use `listenTo` when listening to models

[wonderboymusic]

I just read 2 books about Backbone. Chapter 1 of both says to never do this inside of a view:

this.model.on( 'whatever', this.boom, this )

You should do:

this.listenTo( this.model, 'whatever', this.boom )

Why you ask? The listeners won't be properly removed when the view is destroyed (creating Ghost Views), causing problems with JS garbage collection because the view is still shackled to the model. Using listenTo solves that problem.

[wonderboymusic]

In 31045:

In Media Views, use this.listenTo( this.model, .... ) instead of this.model.on( .... ) to fix garbage collection and to avoid "ghost views."

Fixes #30896.

[nacin]

Which books?

[wonderboymusic]

Addy Osmani: "Developing Backbone.js Applications"
Patrick Mulder: "Full Stack Web Development with Backbone.js"

[wonderboymusic]

​http://addyosmani.github.io/backbone-fundamentals/#listento-and-stoplistening