Tag: event

Re-Learning Backbone.js – Collections

Backbone.js collections are used to store and manage a group of similar or related objects. If all we wanted to do was store related objects we could use a JavaScript array, but Backbone.js Collection provides an infrastructure that allows us to manage the set of data more effectively and efficiently.

As usual, I will attempt to keep the sample very simple. We will focus on collections, but we will need the assistance of models in this example.

In the following example we are creating 2 models and adding them to a collection.



    
    
   	
	


    
  
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In the first section of the code we declare a Movie model class. There’s nothing special here.
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Re-Learning Backbone.js – View Events

It is common for Backbone.js views to include elements that the user can interact with. For example, the user can enter text in a text box, hover over a div, or click a button. These types of interaction can trigger events. If a Backbone.js view is bound to these events, then the view can react to these events. Reaction to these events could be validating data, displaying a message box, or saving or updating data in the model.

While we learning about Backbone.js view events, we will keep it very simple. In the following example we will not have templates or models, we will be working with a very simple view. In this example we will bind an input textbox key-up event to a view’s function. Whenever the user presses a key, an event should be triggered and a function should be called to log the value of the textbox to the browser console. 



    
    
   	
	


    

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