Test your basic knowledge |

Jquery Commands

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Select an element that has special CSS characters in its ID like '.'
$("#some\.id") instead of $("#some.id")
+
if ( $('#myDiv').length )
$("#some\.id") instead of $("#some.id")

2. The _______ version of jQuery is minified
*
interpreter
1000
production

3. Name of the symbol that ends a jQuery statement
semicolon
$('#myDivId')
viewport
Write Less

4. Wildcard selector in jQuery (selects all elements)
dot
dot
production
*

5. Assign a selected element to a javascript variable
html
var myDivElement = $('#myDivId');
JavaScript
$('.myCssClass')
id selector
+
developer
<script></script>
$("#some\.id") instead of $("#some.id")
if not $('#myDiv').show();
*
$("<selector>").<method>;
slideDown
interpreter
concatenation
http://www.jquery.com
$("#myselect option:selected").text();
if ( $('#myDiv').is('.pretty') )
$(document).ready( function( ) {/* your code here */} );
var myDivElement = $('#myDivId');
$
terminator
method
node
$('#myDivId').val("hello world");
DOM (Document Object Model)
opaque
$("#x").attr("disabled","disabled");
html
dot
$("img#dog").fadeIn(3000);
$("h1").hide();
transparent
$('#myDivId')
viewport
browser
HTML string
if ( $('#myDiv').length )
dollar sign
production
$( )
selector
var isHidden = $('#myDiv').is(':hidden');
semicolon
var myValue = $('#myDivId').val();
dot
Write Less
John Resig
descendent selector
$("#c").attr("checked","");
$("#x").removeAttr("disabled");
milliseconds
$("#c").attr("checked", "checked");
slideUp
code block
if ( $(this).hasClass("protected")
slideToggle
jQuery
none
class selector
1000
var isVisible = $('#myDiv').is(':visible');
CSS

6. One of jQuery's main strengths is that it allows you to work with the ____ without having to know everything about it.
var isVisible = $('#myDiv').is(':visible');
viewport
DOM (Document Object Model)
selector

7. Re-write the following command with the jQuery shortcut: jQuery("h1").hide();
$("h1").hide();
CSS
descendent selector
dot

8. Test whether an element has a particular class
$("#c").attr("checked", "checked");
milliseconds
*
if ( $(this).hasClass("protected")

9. The ______ method says 'If it's up slide it down; if it's down slide it up.'
$('#myDivId').val("hello world");
node
slideToggle
$('.myCssClass')

10. Uncheck an input
$('#myDivId').val("hello world");
if ( $('#myDiv').length )
$("#c").attr("checked","");
selector

11. Number of milliseconds in a second
1000
developer
$("#x").removeAttr("disabled");
if not $('#myDiv').show();

12. This kind of file builds the structure of the web page
node
$("h1").hide();
slideDown
html

13. Root of an html document
+
html
var isVisible = $('#myDiv').is(':visible');
$("#x").removeAttr("disabled");

14. jQuery selects elements the same way ____ does
HTML string
CSS
*
milliseconds

15. This is the jQuery object. $ ("document").ready(function () { Your Code }); This is where all of jQuery's functionality is accessed from.
JavaScript
class selector
$
$("#some\.id") instead of $("#some.id")

16. Shortcut for typing: jQuery( )
*
$( )
descendent selector
interpreter

17. Show item if it exists but do nothing (no errors)
var myValue = $('#myDivId').val();
HTML string
if not $('#myDiv').show();
DOM (Document Object Model)
id selector
class selector
$("img#dog").fadeIn(3000);
if ( $(this).hasClass("protected")
milliseconds
opaque
terminator
$("<selector>").<method>;
$("#myselect option:selected").text();
production
dot
JavaScript
if ( $('#myDiv').is('.pretty') )
John Resig
dot
var isHidden = $('#myDiv').is(':hidden');
interpreter
$("#some\.id") instead of $("#some.id")
1000
<script></script>
CSS
$("#c").attr("checked","");
$(document).ready( function( ) {/* your code here */} );
semicolon
http://www.jquery.com
browser
method
html
developer
slideDown
if ( $('#myDiv').length )
var myDivElement = $('#myDivId');
$( )
html
$('#myDivId').val("hello world");
dollar sign
$("h1").hide();
$("#x").removeAttr("disabled");
concatenation
none
$
$("#c").attr("checked", "checked");
jQuery
slideUp
descendent selector
var isVisible = $('#myDiv').is(':visible');
viewport
$('.myCssClass')
Write Less
$('#myDivId')
selector
if not $('#myDiv').show();
$("#x").attr("disabled","disabled");
slideToggle
transparent
node
code block
*
+

18. jQuery motto: _____. Do More.
terminator
$
code block
Write Less

19. Each part of the DOM is called a ________.
node
dot
html
concatenation

20. A(n) ___ _____ is used to identify a single unique element on a page.
JavaScript
$( )
method
id selector

21. Use a _____ to test that your jQuery scripts are working.
DOM (Document Object Model)
$("img#dog").fadeIn(3000);
browser
John Resig

22. Test whether an element has a particular class
$('#myDivId')
if not $('#myDiv').show();
+
descendent selector
$("#myselect option:selected").text();
if ( $(this).hasClass("protected")
dot
id selector
concatenation
dollar sign
$("#x").attr("disabled","disabled");
Write Less
HTML string
$("#some\.id") instead of $("#some.id")
node
$
terminator
if ( $('#myDiv').is('.pretty') )
slideToggle
John Resig
$("#x").removeAttr("disabled");
developer
milliseconds
$("h1").hide();
$(document).ready( function( ) {/* your code here */} );
$('#myDivId').val("hello world");
var isVisible = $('#myDiv').is(':visible');
slideUp
var myDivElement = $('#myDivId');
slideDown
code block
html
CSS
DOM (Document Object Model)
html
$("#c").attr("checked", "checked");
viewport
none
<script></script>
class selector
*
production
interpreter
transparent
$('.myCssClass')
method
dot
http://www.jquery.com
var myValue = $('#myDivId').val();
semicolon
jQuery
$("#c").attr("checked","");
opaque
$( )
JavaScript
if ( $('#myDiv').is('.pretty') )
1000
$("img#dog").fadeIn(3000);
selector
var isHidden = $('#myDiv').is(':hidden');
$("<selector>").<method>;
browser
if ( $('#myDiv').length )

23. Select an item using class

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

24. jQuery is written in _____________
$
if ( $('#myDiv').is('.pretty') )
production
JavaScript

25. The semicolon following a jQuery statement is known as a ___________
var myValue = $('#myDivId').val();
developer
milliseconds
terminator

26. Disable an element
DOM (Document Object Model)
concatenation
$
$("#x").attr("disabled","disabled");

27. Basic jQuery syntax (using shortcut)
$("#c").attr("checked","");
$("<selector>").<method>;
if ( $(this).hasClass("protected")
transparent

28. Name of the character used to separate a jQuery selector from a jQuery method
dot
$
descendent selector
John Resig

29. Get the text value of a selected option
slideToggle
if not $('#myDiv').show();
<script></script>
$("#myselect option:selected").text();

30. JavaScript library specialized for complex interactivity and rich visual effects
slideToggle
jQuery
$( )
dot

31. Both CSS and jQuery use the ____ symbol to specify a class.
dot
<script></script>
HTML string
node

32. Concatenation symbol in JavaScript
browser
var myValue = $('#myDivId').val();
$( )
+

33. The process of adding or 'gluing' various kinds of data together often in a message
$(document).ready( function( ) {/* your code here */} );
concatenation
$("#x").attr("disabled","disabled");
method

34. Test whether an element exists
developer
CSS
+
descendent selector
dollar sign
$('#myDivId').val("hello world");
$("h1").hide();
$
var myDivElement = $('#myDivId');
$("#c").attr("checked","");
var isHidden = $('#myDiv').is(':hidden');
jQuery
code block
html
$("<selector>").<method>;
if not $('#myDiv').show();
*
selector
$('#myDivId')
slideToggle
terminator
browser
$("#some\.id") instead of $("#some.id")
none
var isVisible = $('#myDiv').is(':visible');
http://www.jquery.com
milliseconds
<script></script>
if ( $('#myDiv').length )
HTML string
dot
1000
concatenation
interpreter
transparent
DOM (Document Object Model)
$('.myCssClass')
viewport
semicolon
Write Less
html
$( )
slideDown
slideUp
$("#myselect option:selected").text();
var myValue = $('#myDivId').val();
if ( $(this).hasClass("protected")
$("#x").attr("disabled","disabled");
if ( $('#myDiv').length )
class selector
$(document).ready( function( ) {/* your code here */} );
JavaScript
production
node
$("#x").removeAttr("disabled");
$("#c").attr("checked", "checked");
John Resig
id selector
opaque
$("img#dog").fadeIn(3000);
dot
if ( $('#myDiv').is('.pretty') )
method

35. The _____ method changes the height property of an element until it is zero and then hides the element.
$("h1").hide();
slideUp
code block
slideToggle

36. You know you are dealing with a _____ when you see a set of parenthesis after a keyword
if not $('#myDiv').show();
if ( $('#myDiv').is('.pretty') )
slideUp
method

37. The ______ is the main window of the browser.
viewport
var isVisible = $('#myDiv').is(':visible');
html
slideDown

38. The JavaScript ______ translates directions you give it into different actions on the web page
interpreter
<script></script>
id selector
var isHidden = $('#myDiv').is(':hidden');

39. Set the value of an element
selector
$("h1").hide();
jQuery
dot
dollar sign
$("#some\.id") instead of $("#some.id")
slideUp
terminator
browser
id selector
$
html
dot
var myValue = $('#myDivId').val();
if not $('#myDiv').show();
node
CSS
$("#x").attr("disabled","disabled");
production
$("<selector>").<method>;
$("#c").attr("checked", "checked");
1000
if ( $('#myDiv').is('.pretty') )
$("img#dog").fadeIn(3000);
code block
concatenation
$( )
var isHidden = $('#myDiv').is(':hidden');
developer
$("#c").attr("checked","");
$('.myCssClass')
<script></script>
var myDivElement = $('#myDivId');
$('#myDivId')
if ( $(this).hasClass("protected")
class selector
+
$('#myDivId').val("hello world");
slideToggle
semicolon
$("#myselect option:selected").text();
transparent
milliseconds
method
$(document).ready( function( ) {/* your code here */} );
JavaScript
$("#x").removeAttr("disabled");
*
descendent selector
var isVisible = $('#myDiv').is(':visible');
if ( $('#myDiv').length )
http://www.jquery.com
John Resig
slideDown
opaque
Write Less
HTML string
none
interpreter
$('#myDivId').val("hello world");
html
DOM (Document Object Model)
viewport

40. Another word for invisible
dot
if ( $(this).hasClass("protected")
transparent
JavaScript

41. HTML tag pair that delimits a jQuery code block
$('.myCssClass')
dot
if ( $(this).hasClass("protected")
<script></script>

42. Enable an element
slideToggle
dot
$("#x").removeAttr("disabled");
$('#myDivId').val("hello world");

43. Two versions of jQuery available for download: production & ________
slideUp
$("img#dog").fadeIn(3000);
id selector
developer

44. The original creator of the jQuery library
method
Write Less
opaque
John Resig

45. Stuff between { } is often called a ______
milliseconds
code block
opaque
concatenation

46. Determine the state of a toggled element
concatenation
Write Less
$( )
$("#x").attr("disabled","disabled");
dollar sign
if ( $('#myDiv').length )
$("h1").hide();
var isVisible = $('#myDiv').is(':visible');
John Resig
developer
1000
none
+
class selector
html
slideDown
$("#some\.id") instead of $("#some.id")
$(document).ready( function( ) {/* your code here */} );
opaque
$("#myselect option:selected").text();
var isHidden = $('#myDiv').is(':hidden');
var myDivElement = $('#myDivId');
transparent
var myValue = $('#myDivId').val();
terminator
DOM (Document Object Model)
viewport
method
html
HTML string
<script></script>
semicolon
$
$('.myCssClass')
$("<selector>").<method>;
milliseconds
if ( $('#myDiv').is('.pretty') )
dot
slideUp
$("img#dog").fadeIn(3000);
node
if ( $(this).hasClass("protected")
http://www.jquery.com
$('#myDivId')
id selector
$('#myDivId').val("hello world");
production
selector
$("#x").removeAttr("disabled");
dot
code block
$("#c").attr("checked", "checked");
var isHidden = $('#myDiv').is(':hidden');
interpreter
if not $('#myDiv').show();
$("#c").attr("checked","");
JavaScript
descendent selector
jQuery
browser
slideToggle
CSS
*

47. A ______ is used by jQuery to locate and return an element from the web page
viewport
interpreter
selector
$

48. Select an item using id
dollar sign
$('#myDivId').val("hello world");
JavaScript
semicolon
1000
$(document).ready( function( ) {/* your code here */} );
<script></script>
node
*
selector
code block
John Resig
$("#x").removeAttr("disabled");
slideToggle
concatenation
CSS
id selector
html
if ( $('#myDiv').is('.pretty') )
$
viewport
http://www.jquery.com
transparent
jQuery
+
slideDown
slideUp
$("#c").attr("checked","");
html
$('#myDivId')
$("#c").attr("checked", "checked");
$("#some\.id") instead of $("#some.id")
$( )
$("#x").attr("disabled","disabled");
var myDivElement = $('#myDivId');
if ( $('#myDiv').length )
method
$('.myCssClass')
var myValue = $('#myDivId').val();
opaque
production
descendent selector
milliseconds
var isVisible = $('#myDiv').is(':visible');
none
if ( $(this).hasClass("protected")
class selector
$("#myselect option:selected").text();
$("h1").hide();
terminator
$("<selector>").<method>;
dot
Write Less
var isHidden = $('#myDiv').is(':hidden');
interpreter
browser
$('#myDivId')
dot
HTML string
if not $('#myDiv').show();
developer
DOM (Document Object Model)
$("img#dog").fadeIn(3000);

49. Another word for visible
transparent
slideDown
opaque
dollar sign

50. The _____ method changes the height property of an element from zero to whatever it's set to in the CSS style.
slideToggle
$( )
slideDown
$("#x").attr("disabled","disabled");

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