<   W3Schools jQuery Quiz   >

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( )1. Look at the following selector: $("div"). What does it select?(1)All div elements (2)The first div element (3)N/A (4)N/A
( )2. Which jQuery method is used to perform an asynchronous HTTP request?(1)jQuery.ajaxAsync() (2)N/A (3)jQuery.ajaxSetup() (4)jQuery.ajax()
( )3. Look at the following selector: $("div p"). What does it select?(1)N/A (2)All p elements inside a div element (3)The first p element inside a div element (4)All div elements with a p element
( )4. Which jQuery method is used to hide selected elements?(1) visible(false) (2)hide() (3)hidden() (4)display(none)
( )5. Look at the following selector: $("p#intro"). What does it select?(1)N/A (2)The p element with id="intro" (3)All p elements with class="intro" (4)N/A
( )6. Which jQuery function is used to prevent code from running, before the document is finished loading?(1)N/A (2)$(document).ready() (3)$(body).onload() (4)$(document).load()
( )7. With jQuery, look at the following selector: $("div.intro"). What does it select?(1)The first div element with class="intro" (2)All div elements with id="intro" (3) The first div element with id="intro" (4)All div elements with class="intro"
( )8. Look at the following selector: $(":disabled"). What does it select?(1)All elements containing the text "disabled" (2)All hidden elements (3)All elements that does not contain the text "disabled" (4)All disabled input elements
( )9.  Is jQuery a W3C standard?(1)No (2)Yes (3)N/A (4)N/A
( )10. The jQuery html() method works for both HTML and XML documents(1)TRUE (2)N/A (3)N/A (4) False
( )11. Which jQuery method is used to set one or more style properties for selected elements?(1)style() (2)N/A (3)css() (4)html()
( )12. Which jQuery method is used to remove selected elements?(1)remove() (2)detach() (3)N/A (4)Both methods can be used
( )13. Which jQuery method is used to switch between adding/removing one or more classes (for CSS) from selected elements?(1)switch() (2)switchClass() (3)toggleClass() (4)altClass()
( )14. Which of the following is correct?(1)N/A (2)jQuery is a JavaScript Library (3)jQuery is a JSON Library (4)N/A
( )15. Is jQuery a library for client scripting or server scripting?(1)Server scripting (2)Client scripting (3)N/A (4)N/A
( )16. What is the correct jQuery code to set the background color of all p elements to red?(1)$("p").css("background-color","red"); (2)$("p").manipulate("background-color","red"); (3)$("p").layout("background-color","red"); (4)$("p").style("background-color","red");
( )17. jQuery uses CSS selectors to select elements?(1)TRUE (2)FALSE (3)N/A (4)N/A
( )18. Which sign does jQuery use as a shortcut for jQuery?(1)N/A (2) the ? Sign (3)the % sign (4)the $ sign
( )19. Is it possible to use jQuery together with AJAX?(1)N/A (2)No (3)Yes (4)N/A
( )20. The jQuery animate() method can be used to animate ANY CSS property?(1)Yes (2)Only properties containing numeric values (3)All properties except the shorthand properties (4)N/A
( )21. Which jQuery method should be used to deal with name conflicts?(1)noConflict() (2)conflict() (3)nameConflict() (4)noNameConflict()
( )22. Which jQuery method returns the direct parent element of the selected element?(1)ancestors() (2)ancestor() (3)parent() (4)parents()
( )23. What scripting language is jQuery written in?(1)C++ (2)JavaScript (3)C# (4)VBScript
( )24. What is the correct jQuery code for making all div elements 100 pixels high?(1)$("div").yPos(100) (2)N/A (3)$("div").height="100" (4)$("div").height(100)
( )25. Which statement is true?(1)To use jQuery, you must buy the jQuery library at www.jquery.com (2)To use jQuery, you can refer to a hosted jQuery library at Google (3)N/A (4)To use jQuery, you do not have to do anything. Most browsers (Internet Explorer, Chrome, Firefox and Opera) have the jQuery library built in the browser

解答:
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011.【3】012.【4】013.【3】014.【2】015.【2】016.【1】017.【1】018.【4】019.【3】020.【2】
021.【1】022.【3】023.【2】024.【4】025.【2】

詳解: