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Exam 10: Programming with JavaScript

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Question 41

Multiple Choice

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One can create a ____ variable to determine whether the user is running the Safari browser.

A) null
B) string
C) conditional
D) Boolean

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Question 42

Multiple Choice

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Before you use a variable in a JavaScript program,you should ____ it.

A) compile
B) concatenate
C) declare
D) nullify

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Question 43

Multiple Choice

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When calling a JavaScript function,you provide in your call ____.

The type of information stored in a variable is referred to as its ____________________.

Multiple parameters are separated by____.

You can declare a variable in JavaScript using the ____ command.

Java requires that users have access to the ____ in order to create an executable Java applet.

Case 10-3 Simon’s Leathervane sells handmade leather clothing online. He has added some JavaScript functions to calculate how much a person has to pay before they submit the order page, but is having some trouble. -If Simon is using Internet Explorer,what could he use to debug his program?

MATCHING Identify the letter of the choice that best matches the phrase or definition. a.interpreted b.variable c.data type d.parameter e.spammer f.harvester g.alert dialog box h.compiled i.declaring j.function k.var l.command -Translated into a more basic language 2.The type of information stored in a variable 3.A series of commands that performs an action or calculates a value 4.Displays a text message with an OK button 5.Tells the JavaScript interpreter to reserve memory space for a variable 6.Executed without being compiled 7.A named element in a program that stores information 8.Used to declare a named element in a program 9.Sends unsolicited e-mail 10.Single line that indicates an action to take 11.Scans Web pages for e-mail addresses 12.Variable associated with a function

Some JavaScript functions require parameters,which are variables associated with the function.

Case 10-1 Training unlimited is planning to create a page that will allow users to e-mail their requests for the training videos to add to their online training offerings. -To make their code reusable,the Web designer should put it into a ____.

Each JavaScript command line ends with a(n) ____ to separate it from the next command line in the program.

A multiline comment begins with a /* and ends with a */._________________________

What does the JavaScript command document.println("Hello" + "World") ; print?

The type attribute value for JavaScript is ____.

In Java,programs cannot write content to the hard disk.

A variable declared in a function is said to have ____.

Case 10-1 Training unlimited is planning to create a page that will allow users to e-mail their requests for the training videos to add to their online training offerings. -What should the Web designers worry about when making such a form?

_______ is the process of searching code to locate a source of trouble.

Placing JavaScript code in a Web page file means that users need to retrieve only ____ file from the server.