使用迭代访问嵌套的 javascript 对象子属性
我有一个对象，我想从中访问子级的属性
var obj={
"Total Cost of Ownership": {
"Operational Cost": {
"Asset Cost": {
"Maintenance": {
"Scheduled": {
"Predictive": [
"Parts",
"Labours",
"Consumables"
],
"Periodic": [
"Parts",
"Labours",
"Consumables"
]
},
"Unscheduled": [
"Parts",
"Labours",
"Consumables"
],
"Other Maintenance": [
"Parts",
"Labours",
"Consumables"
]
},
"Compliance": [
"Emissions",
"HOS"
]
},
"Under Utilization Cost": [
"Asset Unassigned",
"LTL",
"Empty Miles",
"Downtime",
"Idling Time",
"Crew Unassigned Time"
],
"Route Cost": {
"Fuel": [
"Defined Route",
"Excess Miles",
"Unattributable Miles"
],
"Charging": {
},
"Wait Time": {
},
"Toll": {
}
},
"Crew Cost": [
"Driving Violations",
"Slary & Insurance",
"Training"
],
"Unsafe Operations Cost": [
"Fatalities",
"Injuries",
"Unsalvageable Vehicles"
]
}
}
}
我有字符串，我想根据这些字符串返回对象孩子的
var str1 = "Total Cost of Ownership";
var str2 = "Total Cost of Ownership*Operational Cost*Asset Cost"
我为它写了一个函数
现在我希望函数应该根据函数输入返回 obj 的孩子，但我无法访问它。请求最佳解决方案？
慕田峪73311741回答
-
慕的地6264312
用这个function getChildOf(x){ var keys = x.split("*") let tempObj = obj; for (const key of keys) { tempObj = tempObj[key] } return tempObj;}// Test with your datavar obj={ "Total Cost of Ownership": { "Operational Cost": { "Asset Cost": { "Maintenance": { "Scheduled": { "Predictive": [ "Parts", "Labours", "Consumables" ], "Periodic": [ "Parts", "Labours", "Consumables" ] }, "Unscheduled": [ "Parts", "Labours", "Consumables" ], "Other Maintenance": [ "Parts", "Labours", "Consumables" ] }, "Compliance": [ "Emissions", "HOS" ] }, "Under Utilization Cost": [ "Asset Unassigned", "LTL", "Empty Miles", "Downtime", "Idling Time", "Crew Unassigned Time" ], "Route Cost": { "Fuel": [ "Defined Route", "Excess Miles", "Unattributable Miles" ], "Charging": { }, "Wait Time": { }, "Toll": { } }, "Crew Cost": [ "Driving Violations", "Slary & Insurance", "Training" ], "Unsafe Operations Cost": [ "Fatalities", "Injuries", "Unsalvageable Vehicles" ] } }}var str1 = "Total Cost of Ownership";var str2 = "Total Cost of Ownership*Operational Cost*Asset Cost";console.log(getChildOf(str1));console.log(getChildOf(str2));
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相关分类
JavaScript