Your Project, Which Uses Prototype

question 65

Multiple Choice

Your project, which uses prototype.js, contains the JavaScript class Photoviewer (see EXAMPLE, below) . Which one of the following code samples will create a class called AdvancedPhotoViewer that extends Photoviewe r? EXAMPLE: var PhotoViewer = Class.create() ;

• A) var AdvancedPhotoViewer = new PhotoViewer()
• B) AdvancedPhotoViewer.prototype = Object.extend (new PhotoViewer ()
• C) var AdvancedPhotoViewer = Class.extend (PhotoViewer)
• D) AdvancedPhotoViewer = PhotoViewer.extend ()

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Definitions:

Cephalocaudal

A principle of growth and development where skills emerge from the head down through the body.

Continuous

Without interruption or end, often used to describe processes or events that persist over time without stopping.

Cephalocaudal

A principle of growth and development where development proceeds from the head downwards through the body.

Proximodistal

A pattern of growth and development where development proceeds from the center of the body outward towards the extremities.