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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. Basic - Content - Visibility - Attribute - Child - Form.
Sliding Page Elements
Fading Elements In and Out
jQuery UI Library
Types of jQuery filters
2. 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
Showing / Hiding Elements
Event Functions
Object
Creating Custom Animations
3. 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.
$(this)
Handlers
Showing / Hiding Elements
Instance
4. 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)
jQuery Events
Fading Elements In and Out
Event Functions
Event Handler
5. 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
Types of jQuery filters
Selectors & Filters
Inserting Content (Move stuff around within DOM)
Advanced selectors
6. Several "helper" functions can perform common event-related tasks - click(fn) - $(selector) .click(fn) - hover(fnOver, fnOut) - toggle(fn1, fn2, fn3, fn4...)
DOM Document object model
Helper Functions - Common Events
$(this)
Animation and Effects
7. 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
Showing / Hiding Elements
Event Handler
Inserting Content (Move stuff around within DOM)
Event Functions
8. 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
Event Handler
Event Object
Creating Custom Animations
Selectors & Filters
9. selector - selector .class1.class2 - parent>child - ancestor descendant - prev+next - prev~siblings.
Advanced selectors
Object
Event Object
Animation and Effects
10. 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
Advanced selectors
Handlers
Event Functions
11. 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)
Instance
Working with CSS Sizing Information
jQuery UI Library
Sliding Page Elements
12. To use these you would download the jqueryui and reference it.
jQuery Events
jquery.ui.com/demos
jQuery UI Library
Advanced selectors
13. 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.
Types of Selectors
Sliding Page Elements
jQuery Statement Chaining
Wrapping - Replacing & Removing Content
14. 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 Library
Wrapping - Replacing & Removing Content
attr function
Event Functions
15. $(selector) .one(type, data, handler) - $(selector) .trigger(event, data) - $(selector) .triggerHandler(event, data)
Callback Function
Event Object
Types of jQuery filters
Event Functions - Specialized Tasks
16. 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
jQuery UI Library
$
Inserting Content (Move stuff around within DOM)
Working with CSS Positioning
17. Handlers are any functions that you write to handle events.
Showing / Hiding Elements
Handlers
DOM Document object model
$(this)
18. 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)
Event Handler
Working with CSS Sizing Information
Types of Selectors
Event Functions
19. 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
jQuery Statement Chaining
$
API
Advanced selectors
20. 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
Inserting Content (Move stuff around within DOM)
jQuery Events
DOM Document object model
attr function
21. 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
Instance
attr function
Working with CSS Sizing Information
22. Elements - #id tags - .classNames tag.className tag#id.className * all elements
Event Functions
Event Functions - Specialized Tasks
API
Types of Selectors
23. An instance is an individual example of a generic object.
Animation and Effects
Working with CSS Information
Instance
Working with CSS Sizing Information
24. This is the jQuery object. $ ("document").ready(function () { Your Code }); This is where all of jQuery's functionality is accessed from.
Instance
$
Event Functions - Specialized Tasks
Event Object
25. 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
Types of jQuery filters
DOM Document object model
$
Animation and Effects
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.
Selectors & Filters
Advanced selectors
Creating Custom Animations
jQuery Statement Chaining
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)
attr function
Sliding Page Elements
jQuery UI Library
Wrapping - Replacing & Removing Content
28. To create a custom animation for properties on page elements call the animate() function - animate(params, duration, easing, callback) - animate(params, options) - stop()
Animation and Effects
Sliding Page Elements
Working with CSS Sizing Information
Creating Custom Animations
29. 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) -
jquery.ui.com/demos
Working with CSS Information
Showing / Hiding Elements
Animation and Effects
30. 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
jquery.ui.com/demos
Showing / Hiding Elements
Helper Functions - Common Events
Types of Selectors
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)
jQuery Statement Chaining
Event Handler
Helper Functions - Common Events
attr function
32. The CSS positioning functions provide cross-browser way for figuring out the positions of elements - offset() - offsetParent() - position() - scrollTop() - scrollTop(val) - scrollLeft() - scrollLeft(val)
Callback Function
Working with CSS Positioning
Event Functions
Fading Elements In and Out