javascript - 如何获取创建的特定对象的连接值

Question

我有两个变量

var peopleTree = {
  "sandeep": "shashi",
  "nanha": "shashi",
  "harish": "nanha",
  "divya": "harish",
  "arjun": "sandeep",
  "shashi": "vinoj",
  "vishal": "divya"
}

和

var ages = {
  'sandeep': 23,
  'shashi': 26,
  'nanha': 22,
  'harish': 24,
  'divya': 30,
  'arjun': 25,
  'vinoj': 26,
  'vishal': 5
}

当使用类 person 创建一个新对象时，它必须将祖先和年龄属性添加到object(示例:当创建 var sandeep = new Person('sandeep', peopleTree,ages) 对象时，sandeep.ancestors 应该给出['sandeep', 'shashi', 'vinoj'] 和 sandeep.ages 应该给出 [23, 26, 26])

Answer 1

参见this JSFiddle。

JavaScript

var peopleTree = {
  "sandeep": "shashi",
  "nanha": "shashi",
  "harish": "nanha",
  "divya": "harish",
  "arjun": "sandeep",
  "shashi": "vinoj",
  "vishal": "divya"
}

var ages = {
  'sandeep': 23,
  'shashi': 26,
  'nanha': 22,
  'harish': 24,
  'divya': 30,
  'arjun': 25,
  'vinoj': 26,
  'vishal': 5
}

function getAncestors(name, peopleTree, ancestors){
    if(!ancestors){
        ancestors = [];   
    }

    ancestors.push(name);

    if(peopleTree[name]){
        return getAncestors(peopleTree[name], peopleTree, ancestors);
    }

    return ancestors;
}

function getAges(ancestors, agesList){
    var ages = [];
    for(var i = 0; i < ancestors.length; i++){
        var age = agesList[ancestors[i]];
        if(age){
            ages.push(age);
        }
    }
    return ages;
}

function Person(name, peopleTree, ages){
    this.name = name;
    this.ancestors = getAncestors(name, peopleTree);
    this.ages = getAges(this.ancestors, ages);
}

var sandeep = new Person('sandeep', peopleTree, ages);