JavaScript-Journey/09-if-else.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>If Else & Ternary</title>
</head>

<body>
    <script>

        var age = parseInt(prompt("Enter Your Age"));
        status = (isNaN(age) === "number" && (age >= 18) ? "eligible" : "not eligible");
        document.write("Your are " + age + " years old, so you are " + status + " to vote.");

        var marks = parseInt(prompt("Enter Marks (0-100):"));

        let grade = isNaN(marks) || marks < 0 || marks > 100 ? "Error: Please enter a valid number between 0 and 100."
                : marks >= 90 ? "Grade: A+ | Reward: Laptop"
                : marks >= 50 ? "Grade: B | Reward: Chocolate"
                : "Grade: F | Status: Failed";

        document.write(grade);


        let text = prompt("Enter Text");

        let dictionaryWord = (text === "i am") ? "I'm"
                : text === "you are" ? "You're"
                : text;

        document.write(dictionaryWord);

        // if (isNaN(marks) || marks < 0 || marks > 100) {
        //     document.write("Error: Please enter a valid number between 0 and 100.");
        // }
        // else if (marks >= 90) {
        //     document.write("Grade: A+ | Reward: Laptop");
        // }
        // else if (marks >= 50) {
        //     document.write("Grade: B | Reward: Chocolate");
        // }
        // else {
        //     document.write("Grade: F | Status: Failed");
        // }

    </script>
</body>

</html>