///Setup del chart desiderato con id univoco
window.setup = (id, config) => {
    var ctx = document.getElementById(id).getContext('2d');
    if (window['myChart'] instanceof Chart) {
        window['myChart'].destroy();
        window['myChart'] = new Chart(ctx, config);
    }
    else {
        window['myChart'] = new Chart(ctx, config);
    }

}