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