Web1 Chp-14 Quiz (JavaScript)
Which symbol is used for the href value in the anchor tag to signify that we don't need the functionality of loading another Web page when we use the onmouseover or onmouseout event handlers?
# symbol (the number, or hashtag, symbol)
Which syntax is used to specify a multiple-line comment in JavaScript?
/ asteric comment asteric / - ( /*...*/ )
Select the comparison operator to use when testing a condition for equality.
== (two equal signs)(equivalent; "is exactly equal to")
Select the true statement from those listed below.
All of the statements these are true <script> tags are used to contain JavaScript statements <script> tags can be placed in both the header and the body section of a web page <script> tags are read by the browser
What is a scripting language?
An Interpreted language that is a subset of a full programming language
How many scripts can be embedded in an XHTML document?
As many as you need
The _______ defines every object and element on a web page.
Document Object Model
A JavaScript variable name can begin with a number
False
JavaScript is basically a subset of the Java programming language.
False
JavaScript is interpreted by the server.
False
Select the technology that was developed by a joint effort between Netscape and Sun Microsystems.
JavaScript
Which client-side scripting language is supported only by the Microsoft Internet Explorer browser?
Jscript
Which tag is used to embed JavaScript into an X/HTML document?
The X/HTML script tag
Which method would you use to request and get data from a user?
The prompt() method
A literal in JavaScript is the same thing as a constant in other programming languages, which means that it is a fixed value.
True
Image swapping describes the effect when the user positions the mouse pointer on top of an image and the original image is swapped for a new image and then when the user moves the mouse away from the image, the original image appears. This is commonly used for navigation button bars.
True
JavaScript is an object-based client-based scripting language interpreted by a Web browser.
True
JavaScript is used to add interactivity to your web pages such as simple animation, fancy menus, and pop ups.
True
The first character in a JavaScript variable name must be either a letter or the underscore character.
True
When a user enters clicks cancel when a JavaScript prompt() method is executed, the prompt() method returns a null value, which is not a string.
True
The _____ method displays a message to the user and contains one button.
alert()
Which of the following are examples of JavaScript variable data types?
all of these
Popular uses for JavaScript are:
all of these ( alert messages, jump menus, all of these, pop-up windows )
An example of a Document Object Model method is:
all of these ( prompt , window.alert , document.write )
JavaScript can be described as:
an object-oriented scripting language
Which of the following will assign the value Smith to the variable customerName?
customerName = Smith ;
The _______________property can set the background color of the document.
document.bgcolor
The code to access the contents of an input box named email on a form is:
document.forms[0].email.value
Use the ____________ method to write text to a web page.
document.write()
In the context of web page interactivity, an _________ can be described as an action taken by the user.
event
Select an appropriate use of Java Script
form validation
A ______ is a reusable block of JavaScript statements.
function
A __________ is a term used to describe a select list that allows the user to select an option to load another Web page.
jump menu
An example of a Document Object Model property is:
lastModified - the trick word for this question is "property"
A _____ is an action that can be performed with an object.
method
Select the valid JavaScript variable name below:
myName
The __________ event handler is triggered when the visitor places their mouse on an object.
onmouseover
A ______ is an attribute or characteristic of an object.
property
A function can ______ a value to indicate success or failure.
return
A Web-server performs which of the following functions?
sending email, storing items in a database, and tracking items in shopping cart
