我正在尝试比较 js 中的两个 JSON 对象。我已经设法将我想要的信息检索到一个数组中，因为这两个 JSON 对象很复杂并且不必比较所有数据。但是，在我试图实现目标的 for 循环中，我不知道在哪里为第二个对象添加第二个循环，因为将它包含在第一个对象循环中会强制对象具有相同的长度，并且这不是真的。这是我到目前为止所拥有的:
var modelsJSON =
{
"modelsARRAY":
[
{
"modelData": {
"manufacture": "Renault",
"name": "Clio",
"year": 2018
},
"modelSpecs": {
"manualGear": true,
"turbo": false,
"diesel": false,
"gasoline": true
}
},
{
"modelData": {
"manufacture": "Renault",
"name": "Megane",
"year": 2019
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": false,
"gasoline": true
}
},
{
"modelData": {
"manufacture": "Renault",
"name": "Laguna",
"year": 2019
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": true,
"gasoline": false
}
}
]
};
var clientsJSON =
{
"clientsARRAY":
[
{
"clientData": {
"name": "Peter",
"lastName": "McKay",
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": true,
"gasoline": true
}
},
{
"clientData": {
"name": "John",
"lastName": "Lucas",
},
"modelSpecs": {
"manualGear": false,
"turbo": true,
"diesel": true,
"gasoline": false
}
}
]
};
var modelName = "";
var clientName = "";
var pdata = [];
var matches = 0;
for (var i in modelsJSON.modelsARRAY)
{
modelName += modelsJSON.modelsARRAY[i].modelData.name + " ";
for (var j in modelsJSON.modelsARRAY[i].modelSpecs)
{
pdata.push(modelsJSON.modelsARRAY[i].modelSpecs[j]);
}
}
console.log(modelName, pdata);
我正在尝试实现这样的日志
"Client Peter has (3)matches with Clio car, (4)matches with Megane car and (x)matches with x car. \n Client John has (4)matches with Clio car, (2)matches with Megane car, and (y)matches with y car".
所以我可以用结果格式化一个新的 JSON。
最佳答案
您可以使用嵌套的 forEach 循环来获得更简洁的代码。此外，您可以将所有属性存储在一个数组中并循环遍历它，以便轻松比较对象属性。这是示例代码(我创建了一个自定义数据结构来存储结果):
var modelsJSON =
{
"modelsARRAY":
[
{
"modelData": {
"manufacture": "Renault",
"name": "Clio",
"year": 2018
},
"modelSpecs": {
"manualGear": true,
"turbo": false,
"diesel": false,
"gasoline": true
}
},
{
"modelData": {
"manufacture": "Renault",
"name": "Megane",
"year": 2019
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": false,
"gasoline": true
}
},
{
"modelData": {
"manufacture": "Renault",
"name": "Laguna",
"year": 2019
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": true,
"gasoline": false
}
}
]
};
var clientsJSON =
{
"clientsARRAY":
[
{
"clientData": {
"name": "Peter",
"lastName": "McKay",
},
"modelSpecs": {
"manualGear": true,
"turbo": true,
"diesel": true,
"gasoline": true
}
},
{
"clientData": {
"name": "John",
"lastName": "Lucas",
},
"modelSpecs": {
"manualGear": false,
"turbo": true,
"diesel": true,
"gasoline": false
}
}
]
};
function Match(client, car, count) {
this.client = client;
this.car = car;
this.count = count;
this.toString = () => {return client + ' matches ' + car + ' for ' + count }
}
var matches = [];
clientsJSON.clientsARRAY.forEach(client => {
modelsJSON.modelsARRAY.forEach(car => {
var props = ["manualGear", "turbo", "diesel", "gasoline"];
var count = 0;
for (var prop of props) {
if (client.modelSpecs[prop] === car.modelSpecs[prop]) {
count++;
}
}
matches.push(new Match(client.clientData.name, car.modelData.name, count));
})
})
for (var match of matches) {
console.log("" + match);
}
关于javascript - 比较两个复杂的 json (Javascript)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54923312/