Matreshka.js: From simple to simple

Hello World.js

var Application = Class({
    'extends': Matreshka,
    constructor: function() {

        // bind x property to the text field
        this.bindNode( 'x', '.my-input' );

        // bind x property and block to my-output class
        this.bindNode( 'x', '.my-output', {
            setValue: function( v ) {
                this.innerHTML = v;
            }
        });

        // if х property has been changed, display it in the console
        this.on( 'change:x', function() {
            console.log( 'x has been changed to' + this.x );
        });
    }
});

var app = new Application();