javascript

<script type="text/javascript">

    try {

        const calculateCalories = () => {

            let weight = document.getElementById('weight').value;

            let age = document.getElementById('age').value;

            let gender = document.getElementById('gender').value;

            let activity = document.getElementById('activity').value;



            let calories = 10 * weight + 6.25 * age - 5 * age; // Fix typo here



            if (gender === 'male') {

                calories += 5;

            } else {

                calories -= 161;

            }



            switch (activity) {

                case 'low':

                    calories *= 1.2;

                    break;

                case 'medium':

                    calories *= 1.55;

                    break;

                case 'high':

                    calories *= 1.725;

                    break;

            }



            document.getElementById('calorie-result').innerText = `Ditt dagliga kaloribehov är ${Math.round(calories)} kalorier.`;

        }



        document.addEventListener('DOMContentLoaded', function() {

            document.getElementById('calculate-button').addEventListener('click', calculateCalories);

        });



    } catch (error) {

        throw error;

    }

</script>