把一个数组遍历倒序放到另一个数组中，数组取值是c：out value

var year = "<c:out value="${year}" />";

var years = [];
            
            var yearDataArray = [];
//遍历year，放进yearDataArray中
            $("#year option[value!='']").each(function(){
                yearDataArray.push($(this).text());
            });
//yearDataArray排序
            yearDataArray = yearDataArray.sort(function(a,b){
                return a-b;
                })
//对yearDataArray 的每一个值加上后缀,放进years中
             $.each(yearDataArray, function(i, d){
                years.push(yearDataArray[i]+"-01-01");
            });