COP 2822: Fall Term 2001
On-Line Quizzes

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JavaScript Final: Working With JavaScript Objects and Events

Javascript Final TestMasters:

Mike Bair (mkbair@hotmail.com) [Text Input]

John Taylor (jtaylor@hcc.cc.fl.us) [Consultant]

Multiple Choice [One Answer Only]

Question 1

The JavaScript object name for the Web browser run by the user is.

a) location
b) history
c) frame
d) navigator

Question 2

The JavaScript object name for the URL of the current Web page is

a) location
b) history
c) where
d) navigator

Question 3

JavaScript is a(n) _____ language, which means that the language is based on manipulating objects by either modifying their properties or applying methods to them.

a) object-method
b) object-based
c) Web
d) None of the above

Question 4

When describing a car using an object-based language, its model number is a(n) _______.

a)object
b)method
c)property
d)None of the above

Question 5

When describing a car using an object-based language, the car is a(n) _____ ..

a)object
b)method
c)property
d)None of the above

Question 6

When describing a car using an object-based language, starting the engine is a(n) ______.

a) object
b) method
c) property
d) None of the above

Question 7

The JavaScript you refer to an object using its _______.

a) object code
b) properties
c) methods
d) object name

Question 8

When you want to use JavaScript to manipulate the browser window, the browser window's object name is

a) frame
b) document
c) window
d) browser_window

Question 9

When you want to use JavaScript to manipulate the currently displayed Web page, the Web page's JavaScript object name is

a) frame
b) document
c) window
d) browser_window

Question 10

You can work with properties in JavaScript by

a) changing the value of a property
b) storing the values property in a variable
c) testing whether the property equals some specific value in an If..Then expression.
d) All of the above

Question 11

The syntax for changing the value of a property is _____.

a) object.property = expression
b) property.object = expression
c) change_object.property = expression
d) expression = object.property

Question 12

In the expression document.bgcolor="red", document is a(n) _____.

a) object
b) method
c) expression
d) property

Question 13

The expression document.bgcolor = "red" will

a) change the Web browser's foregroound color to red.
b) change the Web browser's background color to red
c) display the text"red" on the Web page
d) None of the above

Question 14

Alert(message), close(), and reset() are JavaScript

a) objects
b) methods
c) properties
d) commands

Question 15

Some methods contain ______, which are values that control how the method is applied to the object.

a) properties
b) other methods
c) commands
d) parameters

Question 16

The syntax for applying a method to an object is _____.

a) object.method;
b) object.method()
c) object.method();
d) property.method();

Question 17

In the example form.submit(), submit() is a(n) _____.

a) object
b) method
c) property
d) command

Question 18

A(n) _______ is a specific action that triggers the browser to run a block of JavaScript commands.

a) method
b) property
c) parameter
d) event

Question 19

The result of the command eval("5") + eval("3") is _____.

a) 53
b) 5 + 3
c) 8
d) "53"

Question 20

Code added to an HTML tag that runs whenever a particular event occurs is a(n)______.

a) event
b) method
c) event handler
d) None of the above.

Question 21

The names onClick, onLoad, and onFocus are JavaScript _______.

a) events
b) methods
c) event handlers
d) None of the above

Question 22

Use the _____ method to make an input box active when a form opens.

a) focus()
b) blur()
c) select()
d) type()

Question 23

Use the _____ function to change a text value into a numeric value.

a) focus()
b) eval()
c) change()
d) type()

Question 24

The result of the document.write("5" + "3") is _____.

a) 53
b) 5 + 3
c) 8
d) "53"

Question 25

The _____ keyword is reserved by JavaScript to refer to the currently selected object.

a) this
b) object
c) this.object
d) None of the above.

Question 26

If you want to inform users of invalid responses using a dialop box use the ______ method.

a) prompt()
b) confirm()
c) alert()
d) None of the above

Question 27

If you want to inform form users of invalid responses using a dialog box that contains an OK button and a Cancel button, use the _____ method.

a) prompt()
b) confirm()
c) alert()
d) None of the above

Question 28

All of the following are properties of check boxes except ______.

a) checked
b) clicked
c) defaultChecked
d) name

Question 29

To reload a page use the _____.

a) reload() method
b) location object
c) onClick event
d) reload object

Question 30

You must place the onLoad event handler in the ____ tag of the HTML file.

a) < HTML>
b) < BODY>
c) < SCRIPT>
d) None of the above

True/False Questions