JavaScript-Journey/04-built-in.html at main · oxidara/JavaScript-Journey · 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>Built In Functions</title>
    <script>

        // alert("Please fill all fields of the form.");

        console.log(typeof("12345")); // String
        console.log(typeof(12345)); // Number
        console.log(typeof(parseInt("1234.1212")));
        console.log(parseInt("1234.1212 ABC"));


        console.log(typeof(parseFloat("1234.11342")));

        document.write(eval("2 + 2"));

        console.log(isNaN("ABC"));

        prompt("Enter Name", "John Doe");

        // 123 is Not a Number -> false
        // ABC is Not a Number -> true

        // var surity = confirm("Are you sure you want to delete zainab from this world?");

        // if (surity == true) {
        //     document.write("You click on OK means value is true.");
        // }
        // else {
        //     document.write("You click on Cancel means value is false.");
        // }

        // function message() {
        // }

    </script>
</head>
<body>
    <!-- ... empty ... -->
</body>
</html>