js判断日期是否过期

dayjs一个轻量的处理日期的库
var expiryDate = dayjs(item.EXPIRY_DATE).format('YYYY-MM-DD');
                var today = new Date();
                var today_time = dayjs(today).format('YYYY-MM-DD');
                if (today_time > expiryDate) {
                    uni.showModal({
                        content: this.l('Membership No. had expired,continue or not?'),
                        success: function(res) {
                            if (res.confirm) {
                                uni.$emit('selectVip', item);
                                uni.navigateBack({});
                            }
                        }
                    });
                } else {
                    uni.$emit('selectVip', item);
                    uni.navigateBack({});
                }