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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. 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
Wrapping - Replacing & Removing Content
Event Handler
API
attr function
2. 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
attr function
Inserting Content (Move stuff around within DOM)
Working with CSS Sizing Information
API
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.
Types of Selectors
Event Functions
Object
$(this)
4. Handlers are any functions that you write to handle events.
Showing / Hiding Elements
Creating Custom Animations
Handlers
Working with CSS Positioning
5. Elements - #id tags - .classNames tag.className tag#id.className * all elements
Types of Selectors
Selectors & Filters
jQuery UI Library
Animation and Effects
6. 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)
Inserting Content (Move stuff around within DOM)
Callback Function
Types of jQuery filters
Sliding Page Elements
7. selector - selector .class1.class2 - parent>child - ancestor descendant - prev+next - prev~siblings.
Advanced selectors
jQuery UI Library
Inserting Content (Move stuff around within DOM)
Selectors & Filters
8. An instance is an individual example of a generic object.
Handlers
jQuery UI Library
Inserting Content (Move stuff around within DOM)
Instance
9. 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
Animation and Effects
$
$(this)
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
$
attr function
jQuery UI Library
Working with CSS Information
11. 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
Advanced selectors
Creating Custom Animations
Event Handler
Object
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)
Event Functions - Specialized Tasks
API
Working with CSS Positioning
Sliding Page Elements
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.
Event Object
jQuery Statement Chaining
attr function
Fading Elements In and Out
14. 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
Event Functions
jQuery Events
jquery.ui.com/demos
Callback Function
15. To use these you would download the jqueryui and reference it.
Object
jQuery Events
jquery.ui.com/demos
Working with CSS Positioning
16. 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()
Creating Custom Animations
Types of Selectors
Event Functions
Wrapping - Replacing & Removing Content
17. 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)
Object
Wrapping - Replacing & Removing Content
Event Functions
Fading Elements In and Out
18. 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.ui.com/demos
Types of Selectors
jQuery Events
DOM Document object model
19. 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 Events
Inserting Content (Move stuff around within DOM)
Working with CSS Sizing Information
API
20. 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
Selectors & Filters
Sliding Page Elements
Advanced selectors
21. 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.
Wrapping - Replacing & Removing Content
Selectors & Filters
Showing / Hiding Elements
Fading Elements In and Out
22. Basic - Content - Visibility - Attribute - Child - Form.
Handlers
Fading Elements In and Out
Types of jQuery filters
Inserting Content (Move stuff around within DOM)
23. 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
$
jquery.ui.com/demos
API
24. 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
Advanced selectors
Event Handler
Event Object
Working with CSS Positioning
25. 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
Types of jQuery filters
Working with CSS Information
Instance
26. jQuery library supplies basic animation and effects functions that perform common visual effects. ( showing/hiding - Fading in and out - Moving elements around the screen)
Inserting Content (Move stuff around within DOM)
Sliding Page Elements
Animation and Effects
Event Handler
27. 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
Event Functions
28. Several "helper" functions can perform common event-related tasks - click(fn) - $(selector) .click(fn) - hover(fnOver, fnOut) - toggle(fn1, fn2, fn3, fn4...)
Event Handler
$
Working with CSS Information
Helper Functions - Common Events
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
$
Advanced selectors
Event Functions
30. 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)
Advanced selectors
Creating Custom Animations
31. $(selector) .one(type, data, handler) - $(selector) .trigger(event, data) - $(selector) .triggerHandler(event, data)
Event Functions - Specialized Tasks
Selectors & Filters
attr function
API
32. To create a custom animation for properties on page elements call the animate() function - animate(params, duration, easing, callback) - animate(params, options) - stop()
Types of Selectors
Creating Custom Animations
Advanced selectors
Working with CSS Sizing Information