vue格式化时间

   formatter(row, column){
                let date = new Date(row.creationTime);
                let Y = date.getFullYear() + '-';
                let M = (date.getMonth()+1 < 10 ? '0'+(date.getMonth()+1) : date.getMonth()+1) + '-';
                let D = date.getDate() < 10 ? '0'+(date.getDate()) + ' ': date.getDate() + ' ';
                let h = date.getHours() < 10 ? '0'+(date.getHours()) + ':': date.getHours() + ':';
                let m = date.getMinutes() < 10 ? '0'+(date.getMinutes()) + ':': date.getMinutes() + ':';
                let s = date.getSeconds() < 10 ? '0'+(date.getSeconds()): date.getSeconds();
                return Y+M+D+h+m+s;
            }