[英]how to select a specific item from a list Flutter/Dart
我有一個動態列表,如下所示...我想創建另一個列表,其中只有“開始”日期,我該怎么做???
"bookings": [
{
"reference": "G1TVTZYSXZRHIIINN888",
"station": "G61703000566",
"connector": 0,
"start": "2021-07-22T17:00:00.000+00:00",
"stop": "2021-07-22T18:00:00.000+00:00",
"card": "D2E3422B",
"status": "Expired"
},
{
"reference": "VD2MQO39CQ1PSHMUDIHT",
"station": "G61703000567",
"connector": 1,
"start": "2021-07-22T18:00:00.000+00:00",
"stop": "2021-07-22T19:00:00.000+00:00",
"card": "D2E3422B",
"status": "Expired"
},
{
"reference": "EPQ05Q8DAHCOVNXMQCM3",
"station": "G61703000567",
"connector": 1,
"start": "2021-07-22T20:00:00.000+00:00",
"stop": "2021-07-22T21:00:00.000+00:00",
"card": "D2E3422B",
"status": "Expired"
}...
Map 在您的 json 上並返回起始值
var data = jsonData["bookings"].map((e) => e["start"]).toList();
嘗試 List.map 和 map 開始鍵,然后調用 toList() 方法
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