Lecture 2 Reviewer

Question 1

Javascript is a ___ computer programming language.

Answer 1

dynamic

Question 2

It is lightweight and most commonly used as a part of web pages, whose implementations allow…

Answer 2

client-side script to interact with the user and make dynamic pages; Javascript

Question 3

It is an interpreted programming language with object-oriented capabilities.

Answer 3

Javascript

Question 4

JS was first known as ___, but Netscape changes its name to JavaScript, possibly because of the excitement being generated by Java.

Answer 4

LiveScript

Question 5

JS made its first appearance in ___ with the name LiveScript.

Answer 5

Netscape 2.0 in 1995

Question 6

The ___ of the language has been embedded in Netscape, Internet Explorer, and other web browsers.

Answer 6

general-purpose core

Question 7

The ___ defined a standard version of the core JavaScript language.

Answer 7

ECMA-262 Specification

Question 8

JS is a ___, ___ programming language.

Answer 8

lightweight; interpreted

Question 9

Designed for creating ___ applications.

Answer 9

network-centric; JavaScript

Question 10

Complementary to and integrated with ___.

Answer 10

Java; JS

Question 11

Complementary to and integrated with ___(2).

Answer 11

HTML

Question 12

Open and cross-platform

Answer 12

JS

Question 13

___ is the most common form of the language

Answer 13

Client-side JS

Question 14

The script should be … for the code to be interpreted by the browser.

Answer 14

included in or references by an HTML document

Question 15

It means that a web page need not be a static HTML, but can include programs that ___ (1), ___ (2), and ___ (3).

Answer 15

interact with the user; control the browser; dynamically create HTML content

Question 16

The JS client-side mechanism provides many advantages over ___.

Answer 16

traditional CGI server-side scripts

Question 17

you might use ___ to check if the user has entered a valid e-mail address in a form field

Answer 17

JS

Question 18

The JS code is executed when the user submits the form, and only if ___, they would be submitted to the web server.

Answer 18

all the entries are valid

Question 19

JavaScript can be used to trap ___ events such as button clicks, link navigation, and other actions that the ___.

Answer 19

user-initiated; user initiates explicitly or implicitly

Question 20

Advantages of JavaScript

Answer 20

1 Less server interaction
2 Immediate feedback to the visitor
3 Increased interactivity
4 Richer interfaces

Question 21

Advantage of JS: You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.

Answer 21

Less server interaction

Question 22

Advantage of JS: They don’t have to wait for a page reload to see if they have forgotten to enter something.

Answer 22

Immediate feedback to the visitors

Question 23

Advantage of JS: You can create interfaces that react when the user hovers over them with a mouse or activates them via the keyboard.

Answer 23

Increased interactivity

Question 24

Advantage of JS: You can use JavaScript to include such items as drag and-drop components and sliders to give a Rich Interface to your site visitors.

Answer 24

Richer interfaces

Question 25

Limitations of JavaScript

Answer 25

1 Client-side JavaScript does not allow the reading or writing of files; This has been kept for security reason. 2 JavaScript cannot be used for networking applications because there is no such support available. 3 JavaScript doesn't have any multithreading or multiprocessor capabilities.

Question 26

JavaScript is a ___ that allows you to build interactivity into otherwise static HTML pages.

Answer 26

lightweight, interpreted programming language

Question 27

JavaScript Development Tools

Answer 27

1 Microsoft FrontPage 2 Macromedia Dreamweaver MX 3 Macromedia HomeSite 5

Question 28

One of major strengths of JavaScript is that it...

Answer 28

does not require expensive development tools

Question 29

You can start with a simple text editor such as ___.

Answer 29

Notepad

Question 30

Since it is an interpreted language inside the context of a web browser, you don't even need to buy a ___.

Answer 30

compiler

Question 31

To make our life simpler, various vendors have come up with very nice ___.

Answer 31

JavaScript editing tools

Question 32

Some of the JS editing tools:

Answer 32

1 Microsoft FrontPage 2 Macromedia Dreamweaver MX 3 Macromedia HomeSite 5

Question 33

JS Dev Tool: Microsoft has developed a popular HTML editor called ___. _*_ also provides web developers with a number of JavaScript tools to assist in the creation of interactive websites.

Answer 33

Microsoft FrontPage

Question 34

JS Dev Tool: ___ is a very popular HTML and JavaScript editor in the professional web development crowd. It provides several handy prebuilt JavaScript components, integrates well with databases, and conforms to new standards such as XHTML and XML.

Answer 34

Macromedia Dreamweaver MX

Question 35

JS Dev Tool: ___ is a well-liked HTML and JavaScript editor from Macromedia that can be used to manage personal websites effectively.

Answer 35

Macromedia HomeSite 5

Question 36

Where is JavaScript Today? The ___ standard will be the first update to be released in over four years.

Answer 36

ECMAScript Edition 5

Question 37

___ conforms to Edition 5 of the ECMAScript standard, and the difference between the two is extremely minor.

Answer 37

JavaScript 2.0

Question 38

Today, Netscape's JavaScript and Microsoft's JScript conform to the ___, although both the languages still support the features that are not a part of the standard.

Answer 38

ECMAScript standard

Question 39

JavaScript can be implemented using JavaScript statements that are placed within the ___ HTML tags in a web page.

Question 40

You can place the script tags, containing your JavaScript, anywhere within you web page, but it is normally recommended that you should keep it within the ___ tags.

Question 41

The script tag alerts the browser program to...

Answer 41

start interpreting all the text between these tags as a script

Question 42

The script tag takes two important attributes:

Answer 42

Language, Type

Question 43

This attribute specifies what scripting language you are using. Typically, its value will be javascript. Although recent versions of HTML (and XHTML, its successor) have phased out the use of this attribute.

Answer 43

Language

Question 44

This attribute is what is now recommended to indicate the scripting language in use and its value should be set to "text/javascript".

Answer 44

Type