Lesson 9

Question 1

Animation

Answer 1

Is the display of a sequence of static images at a fast enough speed to create the illusion of movement.

Question 2

AppCache

Answer 2

Saves a copy of your Web site files locally, in a structured form.

Question 3

Canvas Element

Answer 3

Is a drawing area under programmatic control. The only graphical elements common in earlier HTML were static, such as PNG and JPG.

Question 4

Cookies

Answer 4

Are small text files that Web sites save to a computer’s hard disk that contain information about the user and his or her browsing preferences.

Question 5

Data Type

Answer 5

Values in JavaScript appear in special appearances or “dressings.”

Question 6

Encapsulate

Answer 6

The policy in a JavaScript library that knows how to retrieve the title for itself, rather than having to copy-and-paste the title of all pages for the entire site.

Question 7

JSON

Answer 7

JSON, or JavaScript Object Notation, is a text-based open standard designed for human-readable data interchange.

Question 8

LocalStorage

Answer 8

Has better security and makes programming easier than it is with cookies.

Question 9

Parsing

Answer 9

Is a term used to describe analysis of complex information into constituent parts.

Question 10

Recursion

Answer 10

Is a programming technique in which a function calls itself.

Question 11

XMLHttpRequest API

Answer 11

Enables you to use JavaScript to pass data in the form of text strings between a client and a server.