code up the addAppointment() function. This function runs when the user clicks on the 'MAKE APPOINTMENT' button on the home page. Pseudocode for addAppointment 1. Retrieve the input values for fullName, date and contact Number 2. Retrieve the input value for the radio button based on the reason that is being selected 3. If any of the input fields of fullName, data and contact Number is empty, alert the user to make sure to fill in all the input fields and terminate the function. 4. If all the input fields are filled, confirm that the user wants to make an appointment based on the input values. 5. If the user is confirmed, then generate a 4 random digit of unique code. This unique code is used for allowing the user to change their appointment date later. 6. Create a new appointment based on the input values 7. Add the appointment to the appointmentList 8. Update Local Storage with the updated appointmentList 9. Display an alert message to let the user know that they have successfully made the appointment and let the user know the random generated unique code for them. 10. Reset all the input fields to empty string values.

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