- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="utf-8">
- <title>JavaScript ES6 Function with Default Parameter Values</title>
- </head>
- <body>
- <script>
- function sayHello(name='World'){
- return `Hello ${name}!`;
- }
- document.write(sayHello()); // Hello World!
- document.write("<br>");
- document.write(sayHello('John')); // Hello John!
- </script>
- </body>
- </html>