Kendo UI

Formatting dates
        dateFrom = kendo.parseDate(dateFrom, "MM/dd/yyyy");
        dateFrom = kendo.toString(dateFrom, "yyyy-MM-dd");

Formatting numbers:
        optionsList.find('.impressions strong').html(kendo.toString(+totalImpressions, "0,"));
        optionsList.find('.clicks strong').html(kendo.toString(+totalClicks, "0,"));
        optionsList.find('.ctr strong').html(kendo.toString(+totalCtr/100, "0.00%,"));
        optionsList.find('.spend strong').html(kendo.toString(+totalSpend, "$0,"));