<   W3Schools jQuery Quiz   >

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

解答:
001.【3】002.【4】003.【3】004.【3】005.【3】006.【1】007.【4】008.【2】009.【3】010.【1】
011.【1】012.【4】013.【2】014.【1】015.【2】016.【1】017.【4】018.【3】019.【1】020.【4】
021.【3】022.【3】023.【2】024.【2】025.【3】

詳解: