Deck 6: Introducing Javascript

Question 1

A JavaScript condition will always consist of two statements separated by a relational operator.____________________

Answer 1

False
tokens

Question 2

It is easy for a Web browser to detect whether a particular Web page contains embedded JavaScript code.The person who creates the document should use the < string> tag to mark the beginning of a JavaScript section.____________________

Answer 2

False
script
< script>

Question 3

With JavaScript,the browser will convert the script into its equivalent machine-readable form called ____ code.

A) primary
B) secondary
C) binary
D) sequential

Answer 3

C

Question 4

Programming languages must be converted from a human-readable form to a machine-readable form by a specialized piece of software called a ____.

A) binary code
B) method
C) compiler
D) programmer

Question 5

It would be easier to enter the code that can display simple static text messages in a browser using HTML than to use the JavaScript document.write()method to display the same text messages.

Question 6

Strictly speaking,the rules of JavaScript syntax require a semicolon at the end of each line.

Question 7

A meaningless sequence of gibberish or cryptic symbols can also be a string.

Question 8

The primary purpose of JavaScript is to generate text that will be inserted into the standard ____ text stream.

A) HTTP
B) HTML
C) FTP
D) TCP/IP

Question 9

When working with a compiler,the ____ controls the conversion process of turning human-readable code into a machine-readable form.

A) browser
B) programmer
C) source program
D) target program

Question 10

JavaScript is sometimes referred to as a programming language,but it is more accurate to call it a ____ language.

A) scripting
B) helper
C) sequence
D) process

Question 11

If using the else keyword in a JavaScript if statement,the else keyword appears immediately after the statement block of the if clause and is accompanied by a statement block of its own.

Question 12

A string is limited to 256 characters.

Question 13

The syntax of the conditional statement in JavaScript is very important.The statement begins with the keyword if,and then a condition is specified within a pair of parentheses.____________________

Question 14

In JavaScript,the opening curly brace ( { )indicates the beginning of a statement block,and the closing brace ( } )marks the end of that block.

Question 15

If you make the mistake of entering HTML tags within a JavaScript code block,your browser will still display them without error.

Question 16

HTML tags do not conform to the rules of JavaScript syntax;therefore,the JavaScript interpreter cannot process them.

Question 17

Once the condition has been evaluated,either the if statement block or the else statement block will be executed,or both.

Question 18

JavaScript is undoubtedly the most widely used technology on the World Wide Web.

Question 19

If the result of the condition is true,the else block will run.____________________

Question 20

Method names are always followed by a parameter list,even though the list is sometimes empty.____________________

Question 21

Case 6-2
Daniel is writing JavaScript code to see if the person visiting his Web site is using Microsoft Internet Explorer.
In the context of this case,and the code written below,
(navigator.appName == "Microsoft Internet Explorer")
The term navigator can be used interchangeably with the term ____.

A) browser
B) Microsoft Internet Explorer
C) appName
D) Name

Question 22

The bar at the bottom of the browser window that displays messages is called the ____ line.

A) status
B) help
C) alert
D) command

Question 23

The JavaScript method ____ simply inserts a string of characters into the standard HTML text stream.

A) document.write()
B) document.text()
C) document.stream()
D) document.window()

Question 24

A keyword is recognized as part of the ____ definition.

A) language
B) method
C) property
D) parameter

Question 25

In 1978,two employees of Bell Laboratories,Brian Kernighan and Dennis Ritchie,published a book titled The C Programming Language,and started the tradition to display the phrase ____.

A) "Hello,World!"
B) "Hello,USA!"
C) "Hello,Friend!"
D) "Hello Out There!"

Question 26

FIGURE 6-1

Referring to Figure 6-1 above,the operators shown in the chart are often part of a JavaScript ____.

A) method
B) property
C) parameter list
D) condition

Question 27

When working with JavaScript,always place the ____ directly below the keyword to which it belongs.

A) opening brace
B) closing brace
C) property name
D) method name

Question 28

The syntax of the parameter list consists of an opening parenthesis,____ or more parameter items,and a closing parenthesis.

A) zero
B) one
C) two
D) three

Question 29

The purpose of the ____ method is to allow a JavaScript program to display a special dialog box that will notify the user that an unexpected event has occurred or that some kind of user input is required.

A) notice()
B) message()
C) alert()
D) warning()

Question 30

Case 6-1
Kate is new at her company, and has found some existing JavaScript that she would like to use on the company's Web site.
In the JavaScript below,Kate discovers that the lines labeled "input 1;input 2;and input 3;" are called the ____.
If (< blank>)
{
Input 1;
Input 2;
Input 3;
}

A) variables
B) statements
C) constants
D) operators

Question 31

Case 6-2
Daniel is writing JavaScript code to see if the person visiting his Web site is using Microsoft Internet Explorer.
The condition being evaluated in this JavaScript code fragment from Daniel's site is:
(navigator.appName == "Microsoft Internet Explorer")
In this case,you are utilizing the appName ____ of the navigator object to determine the application name of the current Web browser.

A) method
B) application
C) object
D) property

Question 32

____ is an example of a JavaScript keyword.

A) If
B) Else
C) Return
D) all of the above

Question 33

In the context of HTML and JavaScript,a(n)____________________ is nothing more than a sequence of one or more characters.

Question 34

When working with JavaScript,always place the closing brace so that it is ____ with its corresponding opening brace.

A) horizontally aligned
B) vertically aligned
C) centered
D) right justified

Question 35

The JavaScript if statement supports an optional ____ clause,which defines the action to take if the specified condition is not true.

A) when
B) else
C) yet
D) then

Question 36

FIGURE 6-1

Referring to Figure 6-1,the table shows ____ operators.

A) process
B) relational
C) absolute
D) standard

Question 37

When working with JavaScript,always ____ contained within the statement block.

A) highlight comments
B) capitalize tags
C) italicize the HTML
D) indent the statements

Question 38

____ is considered to be the JavaScript default object,which means it is not necessary to use its name explicitly.

A) Script
B) Value
C) Name
D) Window

Question 39

Case 6-1
Kate is new at her company, and has found some existing JavaScript that she would like to use on the company's Web site.
In the JavaScript below,Kate realizes that the first line "if (< blank>)" is called the ____.
If (< blank>)
{
Input 1;
Input 2;
Input 3;
}

A) link
B) condition
C) clause
D) operator

Question 40

JavaScript objects contain ____ that programmers can access to obtain information about the object.

A) properties
B) methods
C) lists
D) syntax strings

Question 41

Explain the history of Java and JavaScript.Which came first? How are they related to each other? Would you rather have worked on the development of Java or the development of JavaScript? Why?

Question 42

The alert()method is part of an object called ____________________.

Question 43

A token can either be a variable name (such as x or count)or a literal ____________________ (such as 10 or "hello").

Question 44

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.Methods
b.Parameter list
c.Conditional statement
d.Interpretation
e.Syntax
The line-by-line conversion process of scripts that occurs automatically at run time

Question 45

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.Methods
b.Parameter list
c.Conditional statement
d.Interpretation
e.Syntax
Specific rules of grammar in the Javascript language

Question 46

JavaScript is essentially made up of a number of invisible entities called ____________________ that contain a well-defined set of capabilities.

Question 47

A(n)____________________ is a user-defined name for a memory location whose value can change over time.

Question 48

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.Methods
b.Parameter list
c.Conditional statement
d.Interpretation
e.Syntax
JavaScript programmers call upon the services of one or more of these specialized functions that are within objects

Question 49

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.Methods
b.Parameter list
c.Conditional statement
d.Interpretation
e.Syntax
Provides the method with the information it needs to perform its function correctly

Question 50

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.Methods
b.Parameter list
c.Conditional statement
d.Interpretation
e.Syntax
Gives programmers the ability to evaluate a specific condition and then perform different actions depending on the results of that evaluation