jsifConditionPractice

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Study</title>
</head>
<body>
    <script>
    `use strict`
        let discount;
        let sum = +prompt('Enter some sum', 100);
        let discountedSum = 0;
        let discount = 0; // if sum < 1000 discount = 0;

        const discountA = 10 / 100;
        const discountB = 20 / 100;
        const discountC = 30 / 100;

        if ( sum < 1000)
        {
            console.log('No discount!');
        }
        else if ( sum >= 1000 && sum < 2000 )
        {
            discount = discountA;
        }
        else if ( sum >= 2000 && sum < 3000 )
        {
            discount = discountB;
        }
        else if ( sum > 3000 )
        {
            discount = discountC;
        }
        discountedSum = sum - sum * discount;
        console.log(`You got discount!');
        console.log('Sum with discount is ' + discountedSum);


/*        if (sum < 1000 )
        {
            console.log('No discount!');
        }
        else if ( sum >= 1000 && sum < 2000 )
        {
            discountedSum = sum - sum / discountA;
            console.log(`You got discount! Sum with discount is ${discountedSum}`);
        }
        else if ( sum >= 2000 && sum < 3000 )
        {
            discountedSum = sum - sum * discountB;
            console.log(`Sum with discount is ${discountedSum}`);
        }
        else if ( sum >= 3000 )
        {
            discountedSum = sum - sum / discountC;
            console.log(`You got discount! Sum with discount is ${discountedSum}`);
        }
*/
    </script>
</body>
</html>