jQuery Selectors

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Selecting an element by ID in jQuery

Example 1

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Select Element by ID</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight element with id mark
    $("#mark").css("background", "yellow");
});
</script> 
</head>
<body>
    <p id="mark">This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <p>This is one more paragraph.</p>
    <p><strong>Note:</strong> The value of the id attribute must be unique in an HTML document.</p>
</body>
</html>

Selecting elements by class name in jQuery

Example 2

Code: Select all

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Select Element by Class</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight elements with class mark
    $(".mark").css("background", "yellow");
});
</script>
</head>
<body>
    <p class="mark">This is a paragraph.</p>
    <p class="mark">This is another paragraph.</p>
    <p>This is one more paragraph.</p>
</body>
</html>

Selecting elements by element name in jQuery

Example 3

Code: Select all

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Select Element by Name</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight paragraph elements
    $("p").css("background", "yellow");
});
</script>
</head>
<body>
    <h1>This is heading</h1>
    <p>This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <div>This is another block of text.</div>
</body>
</html>

Selecting elements by attribute in jQuery

Example 4

Code: Select all

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Select Element by Attribute</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight paragraph elements
    $('input[type="text"]').css("background", "yellow");
});
</script>
</head>
<body>
    <form>
        <label>Name: <input type="text"></label>
        <label>Password: <input type="password"></label>
        <input type="submit" value="Sign In">
    </form>
</body>
</html>

Selecting elements by compound CSS selector in jQuery

Example 5

Code: Select all

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Select Element by Compound Selector</title>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight only paragraph elements with class mark
    $("p.mark").css("background", "yellow");
  
    // Highlight only span elements inside the element with ID mark
    $("#mark span").css("background", "yellow");
  
    // Highlight li elements inside the ul elements
    $("ul li").css("background", "yellow");
  
    // Highlight li elements only inside the ul element with id mark
    $("ul#mark li").css("background", "red");
  
    // Highlight li elements inside all the ul element with class mark
    $("ul.mark li").css("background", "green");
  
    // Highlight all anchor elements with target blank
    $('a[target="_blank"]').css("background", "yellow");
});
</script>
</head>
<body>
    <p>This is a paragraph.</p>
    <p class="mark">This is another paragraph.</p>
    <p>This is one more paragraph.</p>
    <ul>
        <li>List item one</li>
        <li>List item two</li>
        <li>List item three</li>
    </ul>
    <ul id="mark">
        <li>List item one</li>
        <li>List <span>item two</span></li>
        <li>List item three</li>
    </ul>
    <ul class="mark">
        <li>List item one</li>
        <li>List item two</li>
        <li>List item three</li>
    </ul>
    <p>Go to <a href="https://codedskills.net/" target="_blank">CodedSkills</a></p>
</body>
</html>

Selecting elements by jQuery custom selector

Example 6

Code: Select all

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Custom Selector</title>
<style>
    /* Some custom style */
    *{
        padding: 5px;
    }
</style>
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script>
$(document).ready(function(){
    // Highlight table rows appearing at odd places
    $("tr:odd").css("background", "yellow");
  
    // Highlight table rows appearing at even places
    $("tr:even").css("background", "orange");
  
    // Highlight first paragraph element
    $("p:first").css("background", "red");
  
    // Highlight last paragraph element
    $("p:last").css("background", "green");
  
    // Highlight all input elements with type text inside a form
    $("form :text").css("background", "purple");
  
    // Highlight all input elements with type password inside a form
    $("form :password").css("background", "blue");
  
    // Highlight all input elements with type submit inside a form
    $("form :submit").css("background", "violet");
});
</script>
</head>
<body>
    <table border="1">
        <thead>
            <tr>
                <th>No.</th>
                <th>Name</th>
                <th>Email</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>1</td>
                <td>John Carter</td>
                <td>johncarter@mail.com</td>
            </tr>
            <tr>
                <td>2</td>
                <td>Peter Parker</td>
                <td>peterparker@mail.com</td>
            </tr>
            <tr>
                <td>3</td>
                <td>John Rambo</td>
                <td>johnrambo@mail.com</td>
            </tr>
        </tbody>
    </table>
    <p>This is a paragraph.</p>
    <p>This is another paragraph.</p>
    <p>This is one more paragraph.</p>
    <form>
        <label>Name: <input type="text"></label>
        <label>Password: <input type="password"></label>
        <input type="submit" value="Sign In">
    </form>
</body>
</html>

jQuery Selectors

jQuery Selectors

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