【发布时间】：2023-03-26 23:22:02
【问题描述】：
我有一个带有嵌套数组对象的 json 数组，我想通过键名获取特定对象。我已经尝试了很多，但我需要一些通用的解决方案。
let data = {"role":"http://www.icai.org/xbrl/taxonomy/role/in-ca/DisclosureOfGeneralInformationAboutCompany","facts":{"concept":"in-ca:DisclosureOfGeneralInformationAboutCompanyAbstract","$t":"","facts":[{"concept":"in-ca:DisclosureOfCompanyInformationAbstract","$t":"","facts":[{"concept":"in-ca:NameOfCompany","d2016":"LAKSHMI ENERGY AND FOODS LIMITED"},{"concept":"in-ca:CorporateIdentityNumber","d2016":"L00000CH1990PLC010573"},{"concept":"in-ca:PermanentAccountNumberOfEntity","d2016":"AAACL3147J"},{"concept":"in-ca:AddressOfRegisteredOfficeOfCompany","d2016":"SCO 18 19 1ST FLOOR SECTOR 9 D, MADHYA MARH CHANDIGARH"},{"concept":"in-ca:TypeOfIndustry","d2016":"Commercial and Industrial"},{"concept":"in-ca:RegistrationDate"},{"concept":"in-ca:CategoryOrSubcategoryOfCompany"},{"concept":"in-ca:WhetherCompanyIsListedCompany"}]},{"concept":"in-ca:DisclosureOfDocumentInformationAbstract","$t":"","facts":[{"concept":"in-ca:DateOfBoardMeetingWhenFinalAccountsWereApproved","d2016":"2016-05-09"},{"concept":"in-ca:PeriodCoveredByFinancialStatements"},{"concept":"in-ca:DateOfStartOfReportingPeriod","d2015":"2014-04-01","d2016":"2015-04-01"},{"concept":"in-ca:DateOfEndOfReportingPeriod","d2015":"2015-03-31","d2016":"2016-03-31"},{"concept":"in-ca:NatureOfReportStandaloneConsolidated","d2016":"Standalone"},{"concept":"in-ca:ContentOfReport","d2016":"Financial Statements"},{"concept":"in-ca:DescriptionOfPresentationCurrency","d2016":"INR"},{"concept":"in-ca:LevelOfRoundingUsedInFinancialStatements","d2016":"Millions"},{"concept":"in-ca:TypeOfCashFlowStatement","d2016":"Indirect Method"},{"concept":"in-ca:DisclosureWebLinkOfCompanyAtWhichAnnualReportIsPlaced"}]},{"concept":"in-ca:DisclosureOfOtherGeneralInformationAbstract","$t":"","facts":[{"concept":"in-ca:DateFromWhichRegisterOfMembersRemainedClosed"},{"concept":"in-ca:DateTillWhichRegisterOfMembersRemainedClosed"},{"concept":"in-ca:NameOfRegistrarAndTransferAgent"},{"concept":"in-ca:AddressAndContactDetailsOfRegistrarAndTransferAgent"},{"concept":"in-ca:WhetherCompanyIsMaintainingBooksOfAccountAndOtherRelevantBooksAndPapersInElectronicForm","d2016":"true"},{"concept":"in-ca:PostalAddressOfPlaceOfMaintenanceOfComputerServersStoringAccountingDataAbstract","facts":[{"concept":"in-ca:CompletePostalAddressOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"Lakshmi Energy and Foods Limited Chandigarh-Ludhiana National Highway, at Khamanon, Punjab,"},{"concept":"in-ca:NameOfCityOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"Chandigarh-Ludhiana National Highway, at Khamanon, Punjab,"},{"concept":"in-ca:NameOfStateUnionTerritoryOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"Punjab"},{"concept":"in-ca:PinCodeOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"141801"},{"concept":"in-ca:NameOfDistrictOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"Punjab"},{"concept":"in-ca:ISOCountryCodeOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"IN"},{"concept":"in-ca:NameOfCountryOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"India"},{"concept":"in-ca:PhoneWithSTDISDCodeOfPlaceOfMaintenanceOfComputerServersStoringAccountingData","d2016":"01628-661800"}]},{"concept":"in-ca:ParticularsOfServiceProviderAbstract","$t":"","facts":[{"concept":"in-ca:NameOfTheServiceProvider"},{"concept":"in-ca:InternetProtocolAddressOfServiceProvider"},{"concept":"in-ca:LocationOfTheServiceProvider"},{"concept":"in-ca:WhetherBooksOfAccountAndOtherBooksAndPapersAreMaintainedOnCloud"},{"concept":"in-ca:AddressAsProvidedByTheServiceProvider"}]}]},{"concept":"in-ca:DisclosureOfPrincipalProductOrServicesAbstract","$t":"","facts":[{"concept":"in-ca:TotalNumberOfProductOrServiceCategory"},{"concept":"in-ca:DescriptionOfPrincipalProductOrServicesCategory"},{"concept":"in-ca:DisclosureOfPrincipalProductOrServicesTable"},{"concept":"in-ca:DisclosureOfPrincipalProductOrServicesLineItems","$t":"","facts":[{"concept":"in-ca:ProductOrServiceCategoryITC4DigitCode","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"1006"},{"concept":"in-ca:DescriptionOfProductOrServiceCategory","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"Rice and Paddy"},{"concept":"in-ca:TurnoverOfProductOrServiceCategory","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"8,784,320,000.00"},{"concept":"in-ca:HighestTurnoverContributingProductOrServiceITC8DigitCode","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"10061090"},{"concept":"in-ca:DescriptionOfProductOrService","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"Rice and Paddy"},{"concept":"in-ca:UnitOfMeasurementOfHighestContributingProductOrService","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"kg"},{"concept":"in-ca:TurnoverOfHighestContributingProductOrService","d2016_TypesOfPrincipalProductOrServicesAxis_Prod1":"8,784,320,000.00"},{"concept":"in-ca:QuantityOfHighestContributingProductOrServiceInUom"}]}]}]}}
实际上，这个对象有一个事实键，而如果概念键与传递的键匹配，我需要获取数据，因此它应该返回特定对象。如果您有任何通用解决方案，请分享。我已经创建了一个解决方案，但这是一个肮脏的解决方案，并且可能会在某个时间点中断。
const getObj = (data, key, subKey) =>{
let obj = {};
key = `:${key}`;
data.forEach((v)=>{
if(v.facts){
if(v.facts.length > 0){
v.facts.forEach((m)=>{
if(m.facts){
if(m.facts.length > 0){
m.facts.forEach((n)=>{
if(n.facts){
if(n.facts.length > 0){
n.facts.forEach((o)=>{
if(o.concept.includes(key)) {
obj = o;
return true;
}
})
}
else{
if(n.concept.includes(key)) {
obj = n;
return true;
}
}
}
else {
if(n.concept.includes(key)) {
obj = n;
return true;
}
}
})
}
else{
if(m.concept.includes(key)) {
obj = m;
return true;
}
}
}
else{
if(m.concept.includes(key)) {
obj = m;
return true;
}
}
})
}
else{
if(v.concept.includes(key)) {
obj = v;
return true;
}
}
}
else{
if(v.concept == key) {
obj = v;
return true;
}
}
});
let value = "";
if(obj[`i${subKey}`]) value = obj[`i${subKey}`];
else if(obj[`d${subKey}`]) value = obj[`d${subKey}`];
else if(obj[subKey]) value = obj[subKey];
return value;}
请帮我解决这个问题
【问题讨论】：
-
facts总是一个数组吗？请添加您的要求及其结果。 -
我从来没有这么多的
forEach循环嵌套在内部和内部并且深入。您的代码首先需要进行大量清理。这段代码现在应该很慢，因为占用了太多内存。 -
@NinaScholz 不，如果里面没有嵌套数组，它可能是对象，如果事实是嵌套的，那么我们需要深入搜索
-
return true不会终止forEach。它将处理数组中的每一项。 -
另外，请添加输入和预期输出。您可以通过遍历嵌套对象的简单递归来解决这个问题。
标签： javascript jquery arrays json angular