Question

要对家庭结构进行建模，我使用了简单的Person类，并且可以将结构另存为文本，然后以另一种方式使用。但是我的班级有不同的方法对我的代码有用且不可或缺，我找到了第一个对象的方法，但是如何继续深入？

深度为1，但最多可以达到6

let json = {"name":"SON","date":"2000-01-01T05:00:00.000Z","sex":"H",
            "dad":{"name":"DAD","date":"2000-01-02T05:00:00.000Z","sex":"H","dad":null,"mom":null},
            "mom":{"name":"MOM","date":"2000-01-03T05:00:00.000Z","sex":"F","dad":null,"mom":null}
           };

class Person {
    constructor(name, date, sexe) {
        this.name = name;
        this.date = date;
        this.sexe = sexe;
        this.dad = null;
        this.mom = null;
    }
    doStuff(){
      console.log(this.name);
    }
}

let obj =  Object.assign(new Person,json);

//OK
obj.doStuff();     

//NOK 'obj.dad.doStuff is not a function' as 'dad' is not associated to Person
obj.dad.doStuff();

Answer 1

您可以递归地执行此操作，如果不是Object.assign，则调用对dad和mom执行null的相同函数：

let json = {
  "name": "SON", "date": "2000-01-01","sex": "H",
  "dad": {
    "name": "DAD","date": "2000-01-02","sex": "H", "dad": null,"mom": null
  },
  "mom": {
    "name": "MOM","date": "2000-01-03","sex": "F","dad": null,
    "mom" : { "name": "GRAMDA","date": "2000-01-02","sex": "F","dad": null,"mom": null }
  }
};

class Person {
  constructor(name, date, sexe) {
    this.name = name;
    this.date = date;
    this.sexe = sexe;
    this.dad = null;
    this.mom = null;
  }
  doStuff() {
    console.log(this.name);
  }
}

function buildPersons(root) {
  let obj = Object.assign(new Person, root);
  if (obj.dad) obj.dad = buildPersons(obj.dad);
  if (obj.mom) obj.mom = buildPersons(obj.mom);
  return obj;
}

let obj = buildPersons(json);
obj.doStuff();
obj.dad.doStuff();
obj.mom.mom.doStuff();

如何将JSON递归地分配给类？

1 个答案: