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    jQuery Traversing Descendants

    Traversing Down the DOM Tree

    A descendant in logical relationships is a kid, grandchild, great-grandchild, and so forth.

    With the help of jQuery, you can simply navigate down one or more levels of the DOM tree to discover or obtain a child element or other descendants of an element in the hierarchy using methods like find() and children().

    jQuery children() Method

    To obtain the directly children of the chosen element, use the jQuerychildren() method.

    The direct children of the < ul> element, which seem to be < li>, will be highlighted by the addition of the class in the example below.

    underline “document ready”

    Example

    < !DOCTYPE html>
    < html lang="en">
    < head>
    < meta charset="utf-8">
    < title>Selecting the Direct Child Elements in jQuery< /title>
    < style>
        .highlight{
    background: skyblue;
        }        
    < /style>
    < scriptsrc="https://code.jquery.com/jquery-3.5.1.min.js">< /script>
    < script>
    $(document).ready(function(){
        $("ul").children().addClass("highlight");
    });
    < /script>
    < /head>
    < body>
    < div class="container">
    < h1>Hello World< /h1>
    < p>This is a < em>simple paragraph< /em>.< /p>
    < ul>
    < li>Step 1< /li>
    < li>Step 2< /li>
    < /ul>
    < /div>
    < /body>
    < /html>
    

    jQuery find() Method

    The descendent elements of the chosen element are obtained using the jQueryfind() method.

    The find() and children() methods are comparable, but the former searches across several layers of the DOM tree to identify the latest descendent, whereas the latter searches only one level. The < li> elements that are offspring of the < div> element would all have borders added to them in the example that follows.

    Example

    < !DOCTYPE html>
    < html lang="en">
    < head>
    < meta charset="utf-8">
    < title>Selecting the Specific Descendant Elements in jQuery< /title>
    < style>
        *{
    margin: 10px;
        }
        .frame{
    border: 2px solid blue;
        }        
    < /style>
    < scriptsrc="https://code.jquery.com/jquery-3.5.1.min.js">< /script>
    < script>
    $(document).ready(function(){
        $("div").find("li").addClass("frame");
    });
    < /script>
    < /head>
    < body>
    < div class="container">
    < h1>Hello World< /h1>
    < p>This is a < em>simple paragraph< /em>.< /p>
    < ul>
    < li>Step 1< /li>
    < li>Step 2< /li>
    < /ul>
    < /div>
    < /body>
    < /html>
    

    Example

    < !DOCTYPE html>
    < html lang="en">
    < head>
    < meta charset="utf-8">
    < title>Selecting All the Descendant Elements in jQuery< /title>
    < style>
        *{
    margin: 10px;
        }
        .frame{
    border: 2px solid blue;
        }        
    < /style>
    < scriptsrc="https://code.jquery.com/jquery-3.5.1.min.js">< /script>
    < script>
    $(document).ready(function(){
        $("div").find("*").addClass("frame");
    });
    < /script>
    < /head>
    < body>
    < div class="container">
    < h1>Hello World< /h1>
    < p>This is a < em>simple paragraph< /em>.< /p>
    < ul>
    < li>Step 1< /li>
    < li>Step 2< /li>
    < /ul>
    < /div>
    < /body>
    < /html>
    

    FAQS

    Q1. What is jQuery traversing method?

    For the purpose of “finding” (or selecting) HTML elements based on their relationships to other elements, jQuery traversing, which is a “move through” method, is employed. Beginning with one option, work your way through it until you find the elements you want.

    Q2. Which are the jQuery methods for traversing down the DOM tree?

    The DOM elements in a DOM hierarchy can be iterated using the jQuery traversing methods. Get the reference of an element or elements using the selector, then use jQuery traversal techniques to change it. Methods for manipulating the DOM that are important include each(), children(), find(), first(), parent(), next(), previous(), siblings(), and more.

    Q3. Is jQuery still used in 2022?

    Simply said, absolutely. Since its release in 2006, jQuery has made client-side development with JavaScript incredibly simple. 14 years later, according to the just published 2021 Stack Overflow Developers Survey, it is currently the second most widely used web framework available.

    Q4. What is formData () in jQuery?

    An object can be created with the function Object() { [native code] } “formData”. The syntax for the object that aids in working with data methods like append, remove, get, etc. is below. variable name is defined as new formData(); variable name.

    Q5. How to traverse through DOM?

    The parentNode property allows us to move up the DOM tree as well. While doing this, the DOM tree will be traversed until the root element is reached, at which point the parentNode attribute will become null.

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