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In JavaScript the functions are objects.

• True, the functions are objects because they have properties and methods.
• False, the functions are routines or methods, not objects.

What is the correct way to create an object?

• Only using the keyword “Object”.
• We can use the braces “{property:value}” or the keyword “Object”, even a function.
• JavaScript is not a object oriented language therefore we can’t create objects.

How do you create objects using a constructor function?

• With the keyword “class”.
• Using an “instance of” to create the required object.
• Applying a “new” to the constructor function of the object. (new Person();)
• It’s impossible to create objects in JavaScript

How can we define a public method?

• Prefixing the keyword “public” to the method.
• Using the keyword “visible”.
• Using the property “prototype” of the constructor and adding it to the method.
• None of the above.

Is it possible to create private variables and methods in an object?

• Of course it is possible.
• No, that’s not possible.

According to the following code, what is the result after being executed?

var User = function(options){
	this.user = options.user;
	function sayHi(){
		console.debug('hi people!');
	}
}
var u = new User({name:'Crysfel'});

u.sayHi();

• The code displays the message “hi people!” in the Firebug’s console.
• An error is generated when executing the method sayHi() because it’s a private method.

According to “Douglas Crockford”, what are the privileged methods?

• They’re the same as the public methods.
• They’re methods that can make Ajax calls to the server.
• They’re public methods that have access to private properties.
• I have no idea who that person is or his contributions.

When are the privileged methods created?

• This methods are created randomly in all the objects of JavaScript.
• This methods are created dynamically at runtime because they are within the constructor.
• They’re created in the same way as the public methods.
• None of the above.

How can we create a “package” (namespace)?

• Using the keyword “package” at the beginning of our code.
• It’s impossible to create a “package” in JavaScript.
• Creating objects inside of other objects (com.quizzpot = {}).
• Writing code inside of an object called “namespace”.

What are the issues we can run into when we don’t use a good “namespace”?

• We can easily delete or overwrite our teammate’s code.
• Issues with the compatibility of third-party libraries.
• We can overwrite variables in memory and get unwanted and hard-to-debug results.
• All of the above.

How do you create “packages” or “namespace” with ExtJS?

• Ext.namespace(‘package.we.need’) or Ext.ns(‘package.we.need’)
• Ext.package(‘package.we.need’)
• Namespace(‘package.we.need’) or Package(‘package.we.need’)

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