// Create a new class named "mynamespace.MyClass"
declare("mynamespace.MyClass", null, {// Custom properties and methods here});

// Create a scoped, anonymous class
var MyClass = declare(null, {// Custom properties and methods here});

var MyClass = declare(null, {// Custom properties and methods here});

var MySubClass = declare(MyClass, {// MySubClass now has all of MyClass's properties and methods// These properties and methods override parent's});

var MyMultiSubClass = declare([MySubClass,MyOtherClass,MyMixinClass
],{// MyMultiSubClass now has all of the properties and methods from:// MySubClass, MyOtherClass, and MyMixinClass});

// Class with custom properties and methods
var MyClass = declare(MyParentClass, {// Any propertymyProperty1: 12,// AnothermyOtherProperty: "Hello",// A methodmyMethod: function(){// Perform any functionality herereturn result;}
});

define(["dojo/_base/declare","dijit/form/Button"
], function(declare, Button){return declare("mynamespace.Button", Button, {label: "My Button",onClick: function(evt){console.log("I was clicked!");this.inherited(arguments);}});
});

// Create a new class
var Twitter = declare(null, {// The default usernameusername: "defaultUser",// The constructorconstructor: function(args){declare.safeMixin(this,args);}
});

var myInstance = new Twitter();

var myInstance = new Twitter({username: "sitepen"
});

// Define class A
var A = declare(null, {// A few properties...propertyA: "Yes",propertyB: 2
});// Define class B
var B = declare(A, {// A few properties...propertyA: "Maybe",propertyB: 1,propertyC: true
});// Define class C
var C = declare([mynamespace.A, mynamespace.B], {// A few properties...propertyA: "No",propertyB: 99,propertyD: false
});

// Create an instance
var instance = new C();// instance.propertyA = "No" // overridden by B, then by C
// instance.propertyB = 99 // overridden by B, then by C
// instance.propertyC = true // kept from B
// instance.propertyD = false // created by C

// Define class A
var A = declare(null, {myMethod: function(){console.log("Hello!");}
});// Define class B
var B = declare(A, {myMethod: function(){// Call A's myMethodthis.inherited(arguments); // arguments provided to A's myMethodconsole.log("World!");}
});// Create an instance of B
var myB = new B();
myB.myMethod();// Would output:
//      Hello!
//      World!