flutter - 如何在flutter中过滤DateTime(intl)？

Question

我有数据列表，我想从最早到最晚过滤它们

包含数据的列表如下所示:

[{id: 73, startTime: 2022-12-13T15:30:57.244Z}, {id: 74, startTime: 2022-12-13T10:00:57.244Z}];

输出应如下所示:

[{id: 74, startTime: 2022-12-13T10:00:57.244Z}, {id: 73, startTime: 2022-12-13T15:30:57.244Z}];

我该怎么做？附:我正在使用国际

Answer 1

假设我们有这个列表:

List dateList = [
    {"id": 73, "startTime": "2022-12-13T15:30:57.244Z"},
    {"id": 74, "startTime": "2022-12-13T10:00:57.244Z"},
  ];

你可以像这样使用sort():

dateList.sort((a, b) => a["startTime"].compareTo(b["startTime"]));

结果:

[
   {id: 74, startTime: 2022-12-13T10:00:57.244Z},
   {id: 73, startTime: 2022-12-13T15:30:57.244Z}
]