bk04ch08/example01.html

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>The startsWith(), includes(), and endsWith() methods</title>
        <style>
            body {
                margin: 1em;
                font-size: 1.5em;
            }
            div {
                margin-top: .5em;
            }
        </style>
    </head>
    <body>
        <div id="output">
        </div>

        <script>
            const bookName = "HTML, CSS, and JavaScript For Dummies";
            console.log(bookName.startsWith("HTML")); // Returns true
            console.log(bookName.startsWith("CSS", 6)); // Returns true
            console.log(bookName.includes("JavaScript")); // Returns true
            console.log(bookName.includes("for")); // Returns false
            console.log(bookName.endsWith("Dummies")); // Returns true
            console.log(bookName.endsWith("JavaScript", 25)); // Returns true
        </script>
    </body>
</html>