SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Jquery
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 32 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
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. Several "helper" functions can perform common event-related tasks - click(fn) - $(selector) .click(fn) - hover(fnOver, fnOut) - toggle(fn1, fn2, fn3, fn4...)
attr function
$(this)
Event Object
Helper Functions - Common Events
2. Basic - Content - Visibility - Attribute - Child - Form.
Types of jQuery filters
Event Functions
API
jquery.ui.com/demos
3. jQuery library supplies basic animation and effects functions that perform common visual effects. ( showing/hiding - Fading in and out - Moving elements around the screen)
Animation and Effects
Callback Function
$(this)
Handlers
4. When an event fires - use (this) to refer to the element that fired it. This provides a nicer way to talk about the element that fired the event - rather having to re-select it.
Helper Functions - Common Events
$
$(this)
attr function
5. When you create a web page and load it in a web browser it takes the document you have written and turns it into an object. Each HTML document loaded into a browser window becomes a Document object. So the DOM represents the web page that is currentl
DOM Document object model
Creating Custom Animations
Helper Functions - Common Events
jquery.ui.com/demos
6. jQuery provides several functions for inserting content into the document (DOM) before and after existing elements - append(content) - Appends after content inside - appendTo(selector) - prepend(content) - Appends before content inside - prependTo(se
Sliding Page Elements
Types of jQuery filters
Inserting Content (Move stuff around within DOM)
Event Functions - Specialized Tasks
7. Handlers are any functions that you write to handle events.
Handlers
jQuery Events
Working with CSS Sizing Information
Working with CSS Positioning
8. Event handlers are used to invoke some code when a certain action happens. When you want some behavior or action to be triggered when a user does something on the page you use an event handler. When an event happens - it has "fired" and when we write
DOM Document object model
Animation and Effects
Event Object
Event Handler
9. An instance is an individual example of a generic object.
jQuery Statement Chaining
API
Object
Instance
10. jQuery provides ways for working with events that is simpler than relying on the DOM. Makes it easy to assign event handlers to groups of elements by using selectors and filters - Binding/Unbinding - Unified Event Object - Convenience Features
$
jQuery Events
Working with CSS Information
$(this)
11. jQuery provides a single object with the most important properties - type - Type of the event ("click", e.g.) - target - Element that issued event - data - data passed to bind function - pageX, pageY - result - timestamp - preventDefault() - isDefaul
Working with CSS Sizing Information
Instance
Event Object
Event Handler
12. The CSS positioning functions provide cross-browser way for figuring out the positions of elements - offset() - offsetParent() - position() - scrollTop() - scrollTop(val) - scrollLeft() - scrollLeft(val)
DOM Document object model
Working with CSS Sizing Information
Working with CSS Positioning
Handlers
13. jQuery can wrap existing content in the page - replace content - copy content and remove it - wrap(html) - wrap(element) - wrapAll(html) - wrapAll(element) - wrapInner(html) - wrapInner(element) - replaceWith(content) - replaceAll(selector) - empty()
jquery.ui.com/demos
Object
Wrapping - Replacing & Removing Content
$
14. Application programming interface. An API is an abstraction that defines and describes an interface for the interaction with a set of functions used by components of a software system. The software providing the functions described by an API is said
Inserting Content (Move stuff around within DOM)
Selectors & Filters
Event Handler
API
15. To retrieve cross browser sizing information for elements - use the jQuery size-related CSS functions - height() - height(val) - width() - width(val) - innerHeight() - innerWidth( - outerHeight(margin) - outerWidth(margin)
jQuery UI Library
Instance
Working with CSS Positioning
Working with CSS Sizing Information
16. selector - selector .class1.class2 - parent>child - ancestor descendant - prev+next - prev~siblings.
Fading Elements In and Out
Advanced selectors
Wrapping - Replacing & Removing Content
Creating Custom Animations
17. $(selector) .one(type, data, handler) - $(selector) .trigger(event, data) - $(selector) .triggerHandler(event, data)
Event Functions - Specialized Tasks
Working with CSS Sizing Information
Handlers
Advanced selectors
18. jQuerys CSS functions provide easy - cross browser access for setting properties and working with positioning and sizing information. The css() function allows you to retrieve and set CSS styles for a set of matched elements. - Functions: css(name) -
Types of jQuery filters
Inserting Content (Move stuff around within DOM)
Working with CSS Information
DOM Document object model
19. An object is a self contained collection of data which comes in two forms properties and methods. A property is a variable belonging to an object. A method is a function that the object can invoke. These properties and methods are all combined into o
Creating Custom Animations
Event Functions - Specialized Tasks
Object
API
20. Provides a pre-built set of functionality giving pages a nice look - Interactions: drag - drop - resize - selectable - sortable - Widgets: Accordian - datepicker - progressbar - dialog - slider - tabs - Effects: Add class - remove class - toggle clas
Animation and Effects
Working with CSS Sizing Information
Event Functions - Specialized Tasks
jQuery UI Library
21. Elements can be hidden immediately or over a specific period of time - show() - Displays element if they are hidden - show(speed, callback) - hide() - Hides the element - hide(speed,callback) - toggle() - Toggles display of matched element - toggle(s
$(this)
Handlers
jQuery Events
Showing / Hiding Elements
22. Callback functions specify code that needs to run after the effect has finished. Not all but many methods accept callbacks. The callback function is called after the animation is 100% finished. The callback parameter is a function to be executed afte
Callback Function
$(this)
Object
Creating Custom Animations
23. Elements can be faded in and out or to a certain opacity. You can also control speed. fadeIn(speed, callback) - fadeOut(speed, callback) - fadeTo(speed, opacity, callback)
Animation and Effects
Fading Elements In and Out
Event Functions - Specialized Tasks
Working with CSS Information
24. To use these you would download the jqueryui and reference it.
Inserting Content (Move stuff around within DOM)
Helper Functions - Common Events
jquery.ui.com/demos
Sliding Page Elements
25. Elements - #id tags - .classNames tag.className tag#id.className * all elements
Helper Functions - Common Events
jQuery Statement Chaining
Working with CSS Positioning
Types of Selectors
26. jQuery selectors return an array of objects that match the selection criteria. jQuery filters operate on a selector to further refine the results array that the selector returns as jquery objects.
Inserting Content (Move stuff around within DOM)
Helper Functions - Common Events
Selectors & Filters
Wrapping - Replacing & Removing Content
27. Sliding effects is another way to reveal page elements. You can also toggle the slide animation - slideDown(speed, callback) - slideUp(speed, callback) - slideToggle(speed, callback)
Callback Function
attr function
Sliding Page Elements
Instance
28. One of jQuery's most powerful features is its ability to chain multiple functions together to perform several operations in one line of code - $(selector) .fn1() .fn2() .fn3(); functions are executed in order.
jquery.ui.com/demos
jQuery Statement Chaining
Event Functions - Specialized Tasks
Handlers
29. This is the jQuery object. $ ("document").ready(function () { Your Code }); This is where all of jQuery's functionality is accessed from.
Creating Custom Animations
$
jQuery UI Library
Showing / Hiding Elements
30. Events are connected and disconnected from elements using the bind() and unbind() functions - bind(event,data,handler) - $(selector) .bind(event, data, handler) - .unbind(event,handler) - $selector .unbind(event,handler)
API
$(this)
Event Object
Event Functions
31. Use jQuery's attr functions to inspect or change the value of an attribute on elements: attr(name) - attr(properties) - attr(key, value) - attr(key, fn) - removeAttr(name)
$(this)
attr function
Handlers
Object
32. To create a custom animation for properties on page elements call the animate() function - animate(params, duration, easing, callback) - animate(params, options) - stop()
Event Functions
Working with CSS Information
Creating Custom Animations
DOM Document object model