Week 13_Lesson 2
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Questions and Answers

Which jQuery method is used to append content to a selected element?

  • add()
  • insert()
  • appendTo()
  • append() (correct)
  • The jQuery before() method adds content before the selected elements.

    True

    What does the jQuery remove() method do?

    It removes the selected element and all its child elements.

    The jQuery __________ method is used to remove all child elements from a selected element.

    <p>empty</p> Signup and view all the answers

    Match the following jQuery methods with their functionalities:

    <p>append() = Adds content at the end of selected elements remove() = Removes selected elements and their children empty() = Removes only the child elements before() = Inserts content before the selected element</p> Signup and view all the answers

    What method is used to add elements after the currently selected HTML elements?

    <p>after()</p> Signup and view all the answers

    The prepend() method can only add one element at a time.

    <p>False</p> Signup and view all the answers

    What are the two methods used to add elements before and after selected HTML elements?

    <p>before() and after()</p> Signup and view all the answers

    The ______ method in jQuery is used to insert content at the end of selected elements.

    <p>append</p> Signup and view all the answers

    Which of the following can be used to create a new element with DOM?

    <p>document.createElement('p')</p> Signup and view all the answers

    The jQuery append() method can only append text and not HTML elements.

    <p>False</p> Signup and view all the answers

    Which jQuery method would you use to insert content before an image?

    <p>before()</p> Signup and view all the answers

    Match the following jQuery methods with their description:

    <p>append() = Inserts content at the end prepend() = Inserts content at the beginning before() = Inserts content before the selected element after() = Inserts content after the selected element</p> Signup and view all the answers

    Which jQuery method is used to insert content at the end of selected HTML elements?

    <p>append()</p> Signup and view all the answers

    The remove() method in jQuery only removes the selected elements without affecting their child elements.

    <p>False</p> Signup and view all the answers

    What method is used to insert content before selected HTML elements?

    <p>before()</p> Signup and view all the answers

    The jQuery method that adds one or more classes to the selected elements is called ___.

    <p>addClass()</p> Signup and view all the answers

    Match the following jQuery methods with their functions:

    <p>append() = Inserts content at the end prepend() = Inserts content at the beginning remove() = Removes the selected element empty() = Removes child elements of the selected element</p> Signup and view all the answers

    Which method would you use to insert content after a selected HTML element?

    <p>after()</p> Signup and view all the answers

    The empty() method removes all elements from the DOM.

    <p>False</p> Signup and view all the answers

    What does the prepend() method do in jQuery?

    <p>Inserts content at the beginning of selected elements</p> Signup and view all the answers

    The jQuery method that removes one or more classes from the selected elements is called ___.

    <p>removeClass()</p> Signup and view all the answers

    What does the jQuery append() method do?

    <p>Inserts content at the end of selected elements</p> Signup and view all the answers

    The prepend() method adds new content before the selected HTML elements.

    <p>True</p> Signup and view all the answers

    Name the method that inserts content after the selected elements in jQuery.

    <p>after()</p> Signup and view all the answers

    The jQuery method that inserts content at the beginning of the selected elements is called ______.

    <p>prepend()</p> Signup and view all the answers

    Match the jQuery methods with their functions:

    <p>append() = Inserts content at the end of selected elements prepend() = Inserts content at the beginning of selected elements after() = Inserts content after the selected elements before() = Inserts content before the selected elements</p> Signup and view all the answers

    Which method can be used to add multiple new elements in one go?

    <p>both append() and prepend()</p> Signup and view all the answers

    The before() method adds new HTML content after the selected elements.

    <p>False</p> Signup and view all the answers

    In jQuery, what action does the prepend() method perform?

    <p>Inserts content at the beginning of the selected elements.</p> Signup and view all the answers

    To add a new item to the end of an ordered list (ol) in jQuery, you would use the ______ method.

    <p>append()</p> Signup and view all the answers

    Which of the following correctly defines the use of the after() method?

    <p>Inserts content after the selected elements</p> Signup and view all the answers

    What does the addClass() method do in jQuery?

    <p>Adds one or more classes to the selected elements</p> Signup and view all the answers

    The removeClass() method can be used to add classes to selected elements.

    <p>False</p> Signup and view all the answers

    What is the purpose of the toggleClass() method?

    <p>To toggle between adding and removing classes from selected elements.</p> Signup and view all the answers

    The jQuery method that sets or returns the style attribute is called ______.

    <p>css</p> Signup and view all the answers

    Which of the following is a correct example of the addClass() method in jQuery?

    <p>$(document).ready(function(){ $('p').addClass('highlight'); });</p> Signup and view all the answers

    The jQuery method css() can add classes to selected elements.

    <p>False</p> Signup and view all the answers

    Describe how the removeClass() method is used.

    <p>It is used to remove specified classes from selected elements.</p> Signup and view all the answers

    When you click on a button, the toggleClass() method toggles the '______' class on the selected elements.

    <p>blue</p> Signup and view all the answers

    What effect does the following jQuery code have? $('h1, h2, p').removeClass('blue');

    <p>Removes the class 'blue' from h1, h2, and p elements</p> Signup and view all the answers

    What will happen when the jQuery after() method is used?

    <p>It adds new content after the selected HTML element.</p> Signup and view all the answers

    Which of the following methods can be used to insert content at the beginning of a selected HTML element?

    <p>prepend()</p> Signup and view all the answers

    When using the append() method, which of the following types of elements cannot be added directly?

    <p>JavaScript objects</p> Signup and view all the answers

    Which scenario incorrectly represents the use of the before() method?

    <p>Inserting a new paragraph after a div element.</p> Signup and view all the answers

    What is the main advantage of using jQuery's after() and before() methods?

    <p>They can work with any number of new elements as parameters.</p> Signup and view all the answers

    What is one function of the jQuery prepend() method?

    <p>Inserts content before the selected elements.</p> Signup and view all the answers

    Which statement about the jQuery append() method is true?

    <p>It can take multiple new elements as parameters.</p> Signup and view all the answers

    What would be the effect of using the jQuery after() method?

    <p>It inserts content right after the selected elements.</p> Signup and view all the answers

    What type of content can be added with jQuery methods like append(), prepend(), and others?

    <p>Both text and new HTML elements.</p> Signup and view all the answers

    In jQuery, which methods can be used to add new content to existing HTML elements?

    <p>append() and prepend()</p> Signup and view all the answers

    Which method would you use to completely remove an element and its child elements from the DOM?

    <p>remove()</p> Signup and view all the answers

    What will happen if you use the empty() method on a selected element?

    <p>It leaves the selected element but removes its child elements.</p> Signup and view all the answers

    Which method can be used to add new elements immediately after another selected element?

    <p>after()</p> Signup and view all the answers

    When creating a new element with jQuery using $() constructor, how would you insert text into it?

    <p>Using the text() method after creating the element.</p> Signup and view all the answers

    What is the primary difference between the remove() and empty() methods in jQuery?

    <p>remove() removes elements and children, while empty() only removes children.</p> Signup and view all the answers

    Which of the following correctly describes how to append multiple elements with jQuery?

    <p>Use the after() method to append multiple elements in one call.</p> Signup and view all the answers

    What is the purpose of the jQuery call $(document).ready(function() { ... });?

    <p>It ensures that the DOM is fully loaded before executing any code.</p> Signup and view all the answers

    Which of the following statements about the remove() method is true?

    <p>It can remove multiple elements in one call.</p> Signup and view all the answers

    What would be the result of the following jQuery code: $('.container').empty();?

    <p>It retains the '.container' element but removes all its child elements.</p> Signup and view all the answers

    Which method correctly creates a new HTML element using pure JavaScript?

    <p>document.createElement()</p> Signup and view all the answers

    Study Notes

    JavaScript - jQuery HTML/CSS Methods

    • This is a lecture on jQuery HTML/CSS methods, likely part of a course at Yeungjin University.
    • The course is focusing on adding and removing content within HTML using jQuery methods.
    • Different jQuery methods are detailed for adding content: append(), prepend(), after(), and before().
    • append() adds content to the end of selected elements.
    • prepend() adds content to the beginning of selected elements.
    • after() adds content after selected elements.
    • before() adds content before selected elements.
    • Practical examples of these methods are given to illustrate how they are used with JavaScript and HTML elements.

    jQuery - Remove Elements

    • jQuery methods for removing HTML elements are presented: remove() and empty().
    • remove() removes the specified element and all its child elements.
    • empty() removes all child elements from the specified element, but leaves the element itself intact.

    jQuery - Get and Set CSS Classes

    • Shows how jQuery is used to manipulate the style of elements.

    • addClass(): to add one or more CSS classes to elements (e.g., addClass("blue")).

    • removeClass(): to remove one or more CSS classes (removeClass("blue")).

    • toggleClass(): to toggle a class (switch between adding/removing a class, like if a class is present, remove it. If not present, add it).

    • css(): used to set or get one or more CSS properties. Demonstrated how to get and set a specific CSS property, or multiple properties at once.

    • Examples of jQuery code using these methods to manipulate elements are presented.

    • The lecture summary presents an overview of using jQuery for adding, removing, and manipulating HTML content and styles.

    • Further study, indicated by the final slide, focuses on jQuery examples.

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    Description

    This quiz explores jQuery methods for manipulating HTML/CSS, focusing on adding and removing content. Key methods such as append(), prepend(), after(), before(), remove(), and empty() are detailed with practical examples. Ideal for students learning jQuery in a web development course.

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