Important.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>Alert,Prompt,confirm</title>
</head>
<body>
    <div class="container">
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    </div>
    <script>
        // alert in browser in javaScript.
        alert("This is a message.")
        // using this function alert a modal window opens.
        // this does not return any thing

        // prompt in the browser.
        let name=prompt("What is your name ?", "Guest")
        console.log(name);

        let del=confirm("DO you really want to delete this post...");
         //console.log(del);
        if(del){
            console.log("Your post has been deleted successfully.");

        }
        else{
            console.log("Your post is not deleted.")
        }

        // Task(Asignment)
        let age=prompt("what is your age?");
        if(age>18)
        {
          console.log("Your are eligible.")
        }
        else{
            console.log("You are not eligible.")
        }
       

    </script>
</body>
</html>