JS 把时间戳转化成YY-MM-DD

//把时间戳转换YY-MM--ddMyInformation.prototype.format = function(date){ var format = "",oY ="",oM = "",

//把时间戳转换YY-MM--ddMyInformation.prototype.format = function(date){    var format = "",oY ="",oM = "",oD="";    var oDate = new Date(date);    oY = oDate.getFullYear();    oM = oDate.getMonth() + 1;    oM = oM < 10?"0"+oM:oM;    oD = oDate.getDate();    oD = oD < 10?"0"+oD:oD;    format = oY+"-"+oM+"-"+oD;    return format;};