如何在 Angular typescript 中使用两个嵌套数组进行完全外连接？

Question

我有两个嵌套结构数组，如下所示

array1 = [{
            Name: "BMW car", id: "BMW", group: "car",
            children: [{ Name: "320 Mod", id: "320", group: "BMW" },
                       { Name: "X3 Mod", id: "X3", group: "BMW" },
                       { Name: "X5 Mod", id: "X5", group: "BMW" }]},
        { Name: "Ford", id: "Ford", group: "car"}
       ];
    
 array2 = [{
            id: "BMW", description: "parent car BMW",
            children: [{ id: "320", description: "parent car BMW, model 320", },
                { id: "X3", description: "parent car BMW model X3", },
                { id: "X5", description: "parent car BMW Model X5", }]},
           {id: "TATA", description: "parent car TATA", children: [{ Name: "Jeep", id: "320", group: "TATA" }]
        }];
        
        

我想使用这些数组进行完全外连接操作。 我试过了，但我没有得到预期的结果。

我的代码

 let finalresult = this.array1.map((a) => {
            let obj2 = array2.find((b) => a.id === b.id);
            if (obj2)
              obj2.children = this.mergeTwoArray(a.children, obj2.children);
            Object.assign(a, obj2);
            return a;
          });
 console.log(finalresult);
          
private mergeTwoArray(outputArray1, outputArray2) {
   let result = outputArray1.map((a) => {
          let obj2 = outputArray2.find((b) => a.id === b.id);
          if (obj2)
            obj2.children = this.mergeTwoArray(a.children, obj2.children);
          Object.assign(a, obj2);
          return a;
        });
        return result;
 }

此代码仅执行内部连接操作。 谁能帮我为这个嵌套数组做完全外连接？