Jquery & JavaScript Trivia Quiz

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| By Punit.gupta

Punit.gupta

Community Contributor

Quizzes Created: 2 | Total Attempts: 1,036

Questions: 10 | Attempts: 811 | Updated: Feb 2, 2024

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Questions and Answers

1.

jQuery is a
- A.
  
  JavaScript Library
- B.
  
  JavaScript Language
- C.
  
  JavaScript Method
- D.
  
  None
Correct Answer
A. JavaScript Library

Explanation
jQuery is a JavaScript library that simplifies the process of interacting with HTML documents, handling events, animating elements, and making AJAX requests. It provides a convenient way to write shorter and more efficient JavaScript code by abstracting away many of the complexities of working with the Document Object Model (DOM) and providing a wide range of useful functions and methods. By including the jQuery library in a webpage, developers can easily enhance the functionality and interactivity of their websites.

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2.

jQuery uses CSS selectors to select elements?
- A.
  
  False
- B.
  
  True
Correct Answer
B. True

Explanation
jQuery indeed uses CSS selectors to select elements. It allows developers to use familiar CSS syntax to target and manipulate elements in the DOM (Document Object Model). This makes it easier for those already familiar with CSS to work with jQuery and perform dynamic actions on web pages.

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3.

Which sign does jQuery use as a shortcut for jQuery?
- A.
  
  The % sign
- B.
  
  The ? Sign
- C.
  
  The $ Sign
- D.
  
  None
Correct Answer
C. The $ Sign

Explanation
The correct answer is the $ Sign. jQuery uses the $ sign as a shortcut for jQuery. It is a commonly used symbol in jQuery code to select elements, manipulate DOM, and perform various operations. The $ sign is used to create a jQuery object and access jQuery methods and functions. It simplifies the syntax and makes it easier to write and read jQuery code.

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4.

With jQuery, look at the following selector: $("div"). What does it select?
- A.
  
  All div elements
- B.
  
  The first div element
Correct Answer
A. All div elements

Explanation
The given selector "$("div")" selects all div elements on the webpage. This is because the "div" inside the quotation marks is a CSS selector that targets all HTML elements with the "div" tag. Therefore, when using this selector with jQuery, it will return a collection of all the div elements present in the DOM.

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5.

Is jQuery a library for client scripting or server scripting?
- A.
  
  Server scripting
- B.
  
  Client scripting
- C.
  
  None
Correct Answer
A. Server scripting

Explanation
jQuery is a library for client scripting. It is a fast, small, and feature-rich JavaScript library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. It is primarily used for enhancing the user interface of a website and improving the user experience on the client-side. Therefore, the given answer "Server scripting" is incorrect.

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1
6.

The jQuery html() method works for both HTML and XML documents
- A.
  
  False
- B.
  
  True
Correct Answer
A. False

Explanation
The jQuery html() method does not work for XML documents. It is specifically designed to manipulate and retrieve HTML content. If you try to use it on an XML document, it may not produce the expected results or may throw an error. Therefore, the statement that the html() method works for both HTML and XML documents is false.

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7.

What is the correct jQuery code to set the background color of all p elements to red?
- A.
  
  $("p").layout("background-color","red");
- B.
  
  $("p").manipulate("background-color","red");
- C.
  
  $("p").css("background-color","red");
- D.
  
  $("p").style("background-color","red");
Correct Answer
C. $("p").css("background-color","red");

Explanation
The correct jQuery code to set the background color of all p elements to red is $("p").css("background-color","red"). This code uses the css() method to modify the CSS property of the selected elements, in this case, the background-color property is set to red.

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8.

Which jQuery method is used to hide selected elements?
- A.
  
  Hidden()
- B.
  
  Hide()
- C.
  
  Visible(false)
- D.
  
  Display(none)
Correct Answer
B. Hide()

Explanation
The correct answer is hide(). The hide() method is used in jQuery to hide selected elements. This method sets the display property of the selected elements to none, effectively hiding them from view on the webpage.

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9.

Which jQuery method is used to switch between adding/removing one or more classes (for CSS) from selected elements?
- A.
  
  toggleClass()
- B.
  
  Switch()
- C.
  
  AltClass()
- D.
  
  SwitchClass()
Correct Answer
D. SwitchClass()

Explanation
The correct answer is "switchClass()". This jQuery method is used to switch between adding and removing one or more classes from selected elements. It allows you to easily toggle the presence of classes on elements, which is useful for dynamically changing the styling or behavior of elements on a webpage.

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10.

jQuery's main focus is..
- A.
  
  AJAX
- B.
  
  DOM Manipulation
- C.
  
  Animations
- D.
  
  All
Correct Answer
D. All

Explanation
jQuery's main focus is on providing a comprehensive set of tools and functionalities for web development. It covers a wide range of areas including AJAX, DOM manipulation, and animations. jQuery simplifies the process of making asynchronous requests, manipulating the HTML structure of a page, and creating dynamic and interactive animations. By encompassing all these areas, jQuery allows developers to efficiently and effectively build interactive and responsive websites.

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Current Version
Feb 02, 2024

Quiz Edited by
ProProfs Editorial Team
Mar 05, 2019

Quiz Created by
Punit.gupta

jQuery & JavaScript Trivia Quiz

jQuery is a

jQuery uses CSS selectors to select elements?

Which sign does jQuery use as a shortcut for jQuery?

With jQuery, look at the following selector: $("div"). What does it select?

Is jQuery a library for client scripting or server scripting?

The jQuery html() method works for both HTML and XML documents

What is the correct jQuery code to set the background color of all p elements to red?

Which jQuery method is used to hide selected elements?

Which jQuery method is used to switch between adding/removing one or more classes (for CSS) from selected elements?

jQuery's main focus is..