Lab5/DOMExample.html at main · Alvin-L-05/Lab5 · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>DOM Selection Testing</title>
</head>
<body>
    <div id="uniqueId">Element with Unique ID</div>
    <div class="commonClass">First Element with Common Class</div>
    <div class="commonClass specialClass">Second Element with Common Class and Special Class</div>
    <p>First Paragraph</p>
    <p>Second Paragraph</p>
    <input type="text" name="inputName" value="First Input by Name">
    <input type="text" name="inputName" value="Second Input by Name">
    <button onclick="testDOMMethods()">Test DOM Methods</button>
    <p id="msg" style="color:red; visibility: hidden;">Please check the Console to see extracted elements.</p>
    <script>
        function testDOMMethods() {
            console.log('getElementById:', document.getElementById('uniqueId'));
            console.log('getElementsByClassName (commonClass):', document.getElementsByClassName('commonClass'));
            console.log('getElementsByClassName (specialClass):', document.getElementsByClassName('specialClass'));
            console.log('getElementsByTagName (p):', document.getElementsByTagName('p'));
            console.log('querySelector (commonClass):', document.querySelector('.commonClass'));
            console.log('querySelectorAll (commonClass):', document.querySelectorAll('.commonClass'));
            console.log('getElementsByName (inputName):', document.getElementsByName('inputName'));
			document.getElementById('msg').style.visibility = 'visible';
        }
    </script>
</body>
</html>