function formatDate(date) { var d = new Date(date), month = "" + (d.getMonth() + 1), day = "" + d.getDate(), year = d.getFullYear(); if (month.length < 2) month = "0" + month; if (day.length < 2) day = "0" + day; return [year, month, day].join("-"); } 나도 어디서 퍼온것이다