我有按日期排序的项目清单。我要做的基本上是按today, yesterday, this week, this month, this year
现在我有这个
for (var i = 0; i < items.length; i++) {
Item itm = items[i];
DateTime itmDate = itm.date;
int diff = itmDate.diffNow();
if (diff == 0) {
today.add(itm);
return;
}
if (diff == -1) {
yesterday.add(itm);
return;
}
if (diff <= -7) {
week.add(itm);
return;
}
if (diff <= -31) {
month.add(itm);
return;
}
if (diff <= -365) {
year.add(itm);
return;
}
}
}
diffNow()
是DateTime
的扩展,它仅返回一个int
,表示自此以来的天数
我如何优化此代码?
答案 0 :(得分:-1)