我之前問過一個類似的問題，但我無法對此進行擴展，也沒有找到可以教我如何做到這一點的確切答案。我的 JSON 檔案在每個嵌套物件內的元素名稱方面將具有相同的結構，但值會有所不同。用簡單的英語，我想從檔案的底部開始，如果出現以下情況，則回傳 true，如果為 true，則停止搜索：AppStatus 是其中之一 ["Approved", "Auto Approved", "Return"] 和嵌套“名稱”的鍵：“付款”，“值”：“X”和“名稱”：“期限”，“值”：“Y”的值不匹配。我提供了 JSON 的片段，以便您可以更輕松地查看。AppStatus 為 2 級，Name、Value 為 3 級。
{
"DecisionHistory": [
{
"Id": "273601",
"Number": "1",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [
{
"Id": "213922",
"Name": "Payments",
"Value": "72",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
},
{
"Id": "273601",
"Number": "2",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [
{
"Id": "213922",
"Name": "Payments",
"Value": "72",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
},
{
"Id": "273601",
"Number": "3",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [
{
"Id": "213922",
"Name": "Payments",
"Value": "75",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
}
]
}
我嘗試使用 2 個丑陋的嵌套 for 回圈但沒有成功。如果不需要，我寧愿不使用 for 回圈。見下文：
function main(jsonFile) {
const history = JSON.parse(jsonFile).DecisionHistory;
const appStatus = ["Approved", "Auto Approved", "Return"];
const termMonths = "TermMonths";
const numberOfPayments = "Number of Payments";
let termMonthsVal = 0;
let numberofPaymentsVal = 0;
for (let a = history.length - 1; a >= 0; a--) {
if (appStatus.includes(history[a].AppStatus)) {
var dataElementsA = history[a].DataElements;
for (let b = (dataElementsA.length) - 1; b >= 0; b--) {
if (dataElementsA[b].Name == termMonths) {
termMonthsVal = new Number((dataElementsA[b].Value));
break;
}
}
}
}
for (let a = history.length - 1; a >= 0; a--) {
if (appStatus.includes(history[a].AppStatus)) {
var dataElementsB = history[a].DataElements;
for (let b = (dataElementsB.length) - 1; b >= 0; b--) {
if (dataElementsB[b].Name == numberOfPayments) {
numberofPaymentsVal = new Number((dataElementsB[b].Value));
break;
}
}
}
}
return (termMonthsVal != numberofPaymentsVal);
}
let jsonFile = `{
"DecisionHistory": [{
"Id": "273601",
"Number": "1",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [{
"Id": "213922",
"Name": "Payments",
"Value": "72",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
},
{
"Id": "273601",
"Number": "2",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [{
"Id": "213922",
"Name": "Payments",
"Value": "72",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
},
{
"Id": "273601",
"Number": "3",
"CreateDate": "2022-10-13 15:31:18.683",
"AppStatus": "Approved",
"DataElements": [{
"Id": "213922",
"Name": "Payments",
"Value": "75",
"GroupId": "12",
"CustomLabel": null
},
{
"Id": "990",
"Name": "Decisioned By",
"Value": "ASDF",
"GroupId": "3",
"CustomLabel": null
},
{
"Id": "215337",
"Name": "Term",
"Value": "75",
"GroupId": "13",
"CustomLabel": null
}
]
}
]
}`;
console.log(main(jsonFile));
//var result = main("_inJson");
//module.exports = main;附帶說明一下，main 函式中的 jsonFile 是從我的 VS Code 中的資源檔案夾中讀取的，并且我正在將 main 匯出到 app.js，以便我可以針對它運行斷言。所以這里發布的 JSON 實際上是在一個單獨的檔案中，但這是資料的確切結構。
我錯過了什么？。篩選？。地圖？。減少？不同的休息時間？
uj5u.com熱心網友回復：
這是一個“單線”，具體取決于您希望線條的長度；）
const x = {
"DecisionHistory": [
{
"AppStatus": "Approved",
"DataElements": [
{
"Name": "Payments",
"Value": "72",
},
{
"Name": "Decisioned By",
"Value": "ASDF",
},
{
"Name": "Term",
"Value": "75",
}
]
},
{
"AppStatus": "Approved",
"DataElements": [
{
"Name": "Payments",
"Value": "72",
},
{
"Name": "Decisioned By",
"Value": "ASDF",
},
{
"Name": "Term",
"Value": "75",
}
]
},
{
"AppStatus": "Approved",
"DataElements": [
{
"Name": "Payments",
"Value": "75",
},
{
"Name": "Decisioned By",
"Value": "ASDF",
},
{
"Name": "Term",
"Value": "75",
}
]
}
]
};
const bar = (f) =>
f.DecisionHistory.reverse().some((decision) => ["Approved", "Auto Approved", "Return"].includes(decision.AppStatus) && decision.DataElements.find((el) => el.Name === 'Payments')?.Value !== decision.DataElements.find((el) => el.Name === 'Term')?.Value);
console.log(bar(x));
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