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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. 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
Working with CSS Positioning
Selectors & Filters
DOM Document object model
Helper Functions - Common Events
2. 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) -
Creating Custom Animations
Fading Elements In and Out
Working with CSS Information
Showing / Hiding Elements
3. 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)
API
Fading Elements In and Out
Sliding Page Elements
Event Object
4. 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
Creating Custom Animations
Advanced selectors
Event Functions - Specialized Tasks
5. 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
Working with CSS Sizing Information
jQuery Events
Working with CSS Information
attr function
6. This is the jQuery object. $ ("document").ready(function () { Your Code }); This is where all of jQuery's functionality is accessed from.
$(this)
Event Functions
$
Inserting Content (Move stuff around within DOM)
7. 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.
Inserting Content (Move stuff around within DOM)
Creating Custom Animations
Object
jQuery Statement Chaining
8. $(selector) .one(type, data, handler) - $(selector) .trigger(event, data) - $(selector) .triggerHandler(event, data)
jQuery Events
Working with CSS Positioning
jQuery UI Library
Event Functions - Specialized Tasks
9. Several "helper" functions can perform common event-related tasks - click(fn) - $(selector) .click(fn) - hover(fnOver, fnOut) - toggle(fn1, fn2, fn3, fn4...)
Helper Functions - Common Events
Working with CSS Sizing Information
jQuery Statement Chaining
Selectors & Filters
10. 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
Creating Custom Animations
Types of Selectors
Sliding Page Elements
jQuery UI Library
11. 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
Selectors & Filters
$(this)
Working with CSS Information
12. 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)
Instance
Event Functions
Working with CSS Sizing Information
Handlers
13. Handlers are any functions that you write to handle events.
Object
Inserting Content (Move stuff around within DOM)
jQuery Statement Chaining
Handlers
14. 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 Events
Event Functions
Advanced selectors
attr function
15. 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
attr function
Event Object
Types of jQuery filters
Handlers
16. Basic - Content - Visibility - Attribute - Child - Form.
Callback Function
$(this)
Types of jQuery filters
Event Functions - Specialized Tasks
17. 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
Object
Working with CSS Sizing Information
$(this)
Showing / Hiding Elements
18. Elements - #id tags - .classNames tag.className tag#id.className * all elements
Types of Selectors
Working with CSS Positioning
Sliding Page Elements
Event Handler
19. 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.
Showing / Hiding Elements
$(this)
Selectors & Filters
Wrapping - Replacing & Removing Content
20. An instance is an individual example of a generic object.
jquery.ui.com/demos
Types of jQuery filters
Working with CSS Positioning
Instance
21. 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
Types of jQuery filters
API
Event Object
Working with CSS Positioning
22. 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)
Selectors & Filters
DOM Document object model
Sliding Page Elements
$
23. 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
Inserting Content (Move stuff around within DOM)
jQuery Statement Chaining
API
jquery.ui.com/demos
24. The CSS positioning functions provide cross-browser way for figuring out the positions of elements - offset() - offsetParent() - position() - scrollTop() - scrollTop(val) - scrollLeft() - scrollLeft(val)
Working with CSS Positioning
API
jQuery Statement Chaining
Types of jQuery filters
25. 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
API
Event Handler
Inserting Content (Move stuff around within DOM)
Callback Function
26. 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.
Animation and Effects
Types of Selectors
$(this)
Helper Functions - Common Events
27. 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)
Creating Custom Animations
$
Working with CSS Sizing Information
Working with CSS Positioning
28. To use these you would download the jqueryui and reference it.
Event Functions
attr function
Working with CSS Information
jquery.ui.com/demos
29. To create a custom animation for properties on page elements call the animate() function - animate(params, duration, easing, callback) - animate(params, options) - stop()
attr function
Working with CSS Positioning
DOM Document object model
Creating Custom Animations
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
Showing / Hiding Elements
Types of jQuery filters
jQuery UI Library
Advanced selectors
31. 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()
Sliding Page Elements
Event Object
Wrapping - Replacing & Removing Content
Event Handler
32. selector - selector .class1.class2 - parent>child - ancestor descendant - prev+next - prev~siblings.
Advanced selectors
Event Functions
jQuery Events
Event Handler