Task1.2P/string.html at main · AdrianMFaria/Task1.2P · 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>String Methods Example</title>
<script>
  function demonstrateStringMethods() {
    var originalString = "Hello, world!";

    // Length of the string
    var length = originalString.length;

    // Convert to uppercase
    var uppercaseString = originalString.toUpperCase();

    // Convert to lowercase
    var lowercaseString = originalString.toLowerCase();

    // Find the index of a substring
    var indexOfComma = originalString.indexOf(",");

    // Replace a substring
    var replacedString = originalString.replace("world", "Universe");

    // Extract a substring
    var extractedSubstring = originalString.slice(7, 12);

    var output = "Original String: " + originalString +
      "<br>Length: " + length +
      "<br>Uppercase: " + uppercaseString +
      "<br>Lowercase: " + lowercaseString +
      "<br>Index of ',': " + indexOfComma +
      "<br>Replaced: " + replacedString +
      "<br>Extracted Substring: " + extractedSubstring;

    document.getElementById("output").innerHTML = output;
  }
</script>
</head>
<body>
<h1>JavaScript String Methods</h1>
<button onclick="demonstrateStringMethods()">Show String Methods</button>
<div id="output"></div>
</body>
</html>