function result() {
    let appKey = 'kid_BJXTsSi-e';
    let appSecret = '447b8e7046f048039d95610c1b039390';
    let username = 'guest';
    let password = 'guest';
    let authorization = btoa(username + ':' + password);
    let url = `https://baas.kinvey.com/appdata/${appKey}/students`;
    $('#createStudents').click(createStudent);

    function students(responce) {
        let students = responce.sort((a, b) => {
            return (a.ID) - (b.ID);
        });
       // $('#results tr').empty();
        for (let data of responce){
            let html = $(`<tr>
        <td>${data.ID}</td>
        <td>${data.FirstName}</td>
        <td>${data.LastName}</td>
        <td>${data.FacultyNumber}</td>
        <td>${data.Grade}</td>
    </tr>`);
            $('#results').append(html);
        }
    }

    function displayStudents() {
        $.ajax({
            method: 'GET',
            url: url,
            headers: {
                "Content-Type": "application/json",
                "Authorization": "Basic " + authorization
            },
            success: students,
            error: displayError
        })
    }
    function displayError(error) {
        $("#results").empty();
        $("#results").append($('<div>').text(error));
    }

    function createStudent() {
        let studentID = $('#studentID').val();
        let firstName = $('#firstName').val();
        let lastName = $('#lastName').val();
        let facultyNumber = $('#facultyNumber').val();
        let grade = $('#grade').val();

        if (studentID != '' && firstName != '' && lastName != '' && facultyNumber != '' && grade != '') {
            let data = JSON.stringify({
                ID: Number(studentID),
                FirstName: firstName,
                LastName: lastName,
                FacultyNumber: Number(facultyNumber),
                Grade: Number(grade)
            });

            $.ajax({
                method: 'POST',
                url: url,
                headers: {
                    "Content-Type": "application/json",
                    "Authorization": "Basic " + authorization
                },
                data: data,
                success: displayStudents,
                error: displayError
            })
        }
        $('#studentID').val('');
        $('#firstName').val('');
        $('#lastName').val('');
        $('#facultyNumber').val('');
        $('#grade').val('');
    }
    displayStudents();
}