What is JavaScript?

In the JavaScript code setTimeout("alert('Boo!')", 5000),; what does the 5000 represent?

A. The number of times the alert box will appear on the screen
B. The maximum width of the alert box, in pixels
C. About half a second of time
D. Five seconds of time

What's the correct syntax for calling a function named changesize() repeatedly every two seconds?

A. setTimeout(2, "changesize()")
B. setTimeout("changesize()", 2000)
C. setInterval("changesize()", 2)
D. setInterval("changesize()", 2000)

What is the definition of the term millisecond?

A. A tenth of a second
B. A hundredth of a second
C. A thousandth of a second
D. A millionth of a second

What would be the correct syntax for stopping a timer named myTimer?

A. Clear interval (my timer)
B. Clearinterval(myTimer)
C. clearInterval(myTimer)
D. myTimer.clearInterval

Which of the following best describes the purpose of the JavaScript .className property?

A. Gets or sets the CSS style class that's assigned to an element
B. Creates a JavaScript class named Name
C. Creates a CSS style class in an internal style sheet
D. Adds a CSS style class to an external style sheet

Which of the following shows the correct syntax for linking to a JavaScript code file named jsCode.js that's in the same folder as the page that contains this code?

A. <link src="jsCode.js" />
B. <link href="jsCode.js" />
C. <script src="jsCode.js".</script>
D. <script href="jsCode.js"></script>

Which of the following could you use to delay JavaScript code execution until after all the HTML and CSS code has been rendered?

A. DOMContentLoaded
B. getElementByTagName
C. indexOf
D. pathname

Which of the following can find all the elements of a certain type in a page?

A. addEventListener
B. function
C. getElementsByTagName
D. DOMContentLoaded

Which of the following would split a URL up into separated items where a slash (/) is used to separate the items?

A. .breakup("/")
B. .pop("/")
C. .split("/")
D. makeArray("/")

Which of the following get the last item from an array?

A. .unshift()
B. .pop()
C. .pull()
D. .shift()

In addition to downloading the jQuery library to your computer and linking to that file within your site, what's another way to use jQuery in your site?

A. Use a fancy authoring program like Visual Studio to add jQuery capabilities to your website
B. Link to jQuery on a Content Development Network (CDN)
C. Make sure that when you select a computer to buy, it already has jQuery installed in it
D. Create a CSS external style sheet, and then run it through a jQuery compiler to create your own library

What character is used throughout JavaScript code to call code in the jQuery library?

A. -
B. %
C. &
D. $

What does $(document).ready do in jQuery? 

A. Tells the external style sheet when it's okay to enter the page and start styling
B. Lets the browser know when it's okay to start rendering the HTML code
C. Tells the person who is viewing the page in a browser when it's okay to start entering jQuery code
D. Ensures that the page is loaded and ready to go before any jQuery code is executed

Which of the following best describes a minified file?

A. A file with all the comments and extra spaces removed so it is small and downloads quickly
B. CDN
C. A version of jQuery that has AJAX extensions removed
D. document.ready

Which best describes the action required to fire jQuery code that has the selector and event hander $("img").click?

A. The user clicks the paragraph that contains id="img"
B. The user clicks an image that has onclick="img" in its tag
C. The user clicks a div tag that contains class="img"
D. The user clicks any image on the page

What does the jQuery toggleClass() method do?

A. Switch between different CSS classes for styling an element
B. Returns true if there's a CSS class named toggle applied to an element
C. Display an on-and-off toggle switch on the page for changing JavaScript classes
D. Make an element fade in and out of view

What is the correct syntax for making an element slide into and out of view quickly?

A. .slideToggle(10ms)
B. .slideToggle("fast")
C. .slideToggle(12000)
D. .slideToggle(quick)

What's the meaning of the jQuery selector $('.wookie p')?

A. The div whose opening tag contains id="wookie p"
B. All paragraphs inside an element whose opening tag includes class="wookie"
C. The paragraph that contains class="wookie" in its opening <p> tag
D. All wookie elements inside the most recently clicked paragraph

If you create a CSS style class to display one background image and then create a second CSS style class to display a different background image, which jQuery method would allow you to switch between the two different background images?

A. .toggle()
B. .toggleClass()
C. .classToggle()
D. .fadeToggle()

Which of the following best describes jQuery decision-making?


A. There's no way to make if...then decisions within a block of jQuery code
B. jQuery uses the same syntax as JavaScript for if...then decisions
C. jQuery decision making is limited to comparing the values of numeric variables
D. jQuery does allow if...then decisions but requires using an unusual syntax similar to HTML