backbone/view-reference-existing.html at master · netsider/backbone · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title></title>
</head>
<body>
<header>
<div class="welcome-message">Hello</div>
</header>
<div id="user-card"></div>
  <script src="jquery-1.11.2.js"></script>
  <script src="underscore.js"></script>
  <script src="backbone.js"></script>
  <script>
	var User = Backbone.Model.extend({}); // Create model
	var user = new User({ // instantiate model
		displayName: 'Russ'
	});
	var WelcomeMessageView = Backbone.View.extend({
		el: 'header .welcome-message', // NOTE THE SPACE!
		initialize: function() {
		this.model.on('change:displayName', this.render, this); // Makes render() called everytime there is a chnage to displayName
		this.render();
	},
	render: function() {
		var displayName = this.model.get('displayName');
		this.$el.html('Welcome ' + displayName);
		return this;
	}
	});
	var welcomeMessageView = new WelcomeMessageView({
		model: user
	});
	//Use "console.log('displayName', 'Horatio')" to see this in action
  </script>
  </body>
</html>