1-helloworld.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>javaScript</title>
</head>
<body>
    <h1>learn javaScript</h1>
    <script>
    console.log("hello world")
    alert("hi")
    
    
    
    </script>
    
</body>
</html>