如何正確決議具有以下結構的 json 物件；
{
"cutoffTimes" : {
"85c46c49-99b6-47a1-9726-960c8fe6c337" : {
"id" : "85c46c49-99b6-47a1-9726-960c8fe6c337",
"customerId" : "fc0097ec-9c41-467f-9b81-50d9a07c65e8",
"time" : "17:00:00",
"deadlineCutoffType" : "TRANSMISSION"
},
"1784efdd-750f-4bae-b65f-179a4e8c28f3" : {
"id" : "1784efdd-750f-4bae-b65f-179a4e8c28f3",
"customerId" : "fc0097ec-9c41-467f-9b81-50d9a07c65e8",
"time" : "18:00:00",
"deadlineCutoffType" : "TRANSMISSION"
},
"86a2d573-e4f4-451a-930e-99922f1f229d" : {
"id" : "86a2d573-e4f4-451a-930e-99922f1f229d",
"customerId" : "fc0097ec-9c41-467f-9b81-50d9a07c65e8",
"time" : "21:30:00",
"deadlineCutoffType" : "TRANSMISSION"
}
}
我通常會做
let _times = JSON.parse({jsondoc});
console.log(`There are ${_times.cutoffTimes.length} times available`);
但是，在本檔案中，cutoffTimes 不是陣列。
uj5u.com熱心網友回復：
你可以Object.keys用來檢查長度。它將您的物件轉換為陣列['85c46c49-99b6-47a1-9726-960c8fe6c337', '1784efdd-750f-4bae-b65f-179a4e8c28f3', ...]
console.log(`There are ${Object.keys(_times.cutoffTimes).length} times available`);
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標籤：javascript json 解析