Test your basic knowledge |

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 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.






2. Handlers are any functions that you write to handle events.






3. $(selector) .one(type, data, handler) - $(selector) .trigger(event, data) - $(selector) .triggerHandler(event, data)






4. 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.






5. selector - selector .class1.class2 - parent>child - ancestor descendant - prev+next - prev~siblings.






6. The CSS positioning functions provide cross-browser way for figuring out the positions of elements - offset() - offsetParent() - position() - scrollTop() - scrollTop(val) - scrollLeft() - scrollLeft(val)






7. 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






8. 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) -






9. 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






10. 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






11. An instance is an individual example of a generic object.






12. 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






13. To create a custom animation for properties on page elements call the animate() function - animate(params, duration, easing, callback) - animate(params, options) - stop()






14. To use these you would download the jqueryui and reference it.






15. 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()






16. 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






17. 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






18. 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






19. 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






20. 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






21. Basic - Content - Visibility - Attribute - Child - Form.






22. 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)






23. 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.






24. Elements - #id tags - .classNames tag.className tag#id.className * all elements






25. 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)






26. This is the jQuery object. $ ("document").ready(function () { Your Code }); This is where all of jQuery's functionality is accessed from.






27. 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)






28. 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)






29. 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






30. 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)






31. Several "helper" functions can perform common event-related tasks - click(fn) - $(selector) .click(fn) - hover(fnOver, fnOut) - toggle(fn1, fn2, fn3, fn4...)






32. jQuery library supplies basic animation and effects functions that perform common visual effects. ( showing/hiding - Fading in and out - Moving elements around the screen)