代码之家 › 专栏 › 技术社区 › asif

从多级嵌套数组获取所有键值

multidimensional-array for-loop arrays javascript

asif · 技术社区 · 7 年前

我有这样一个物体:

var data = [
	{"id":"36e1e015d703120058c92cf65e6103eb","title":"Alex McGibbon"},
	
	{"id":"60beb5e7d7600200e5982cf65e6103ad","title":"Alex Linde"},
	
	{"subs":[{"id":"62826bf03710200044e0bfc8bcbe5df1","title":"Abel Tuter"}],"id":"63e8479fdb161300bde15901cf96191c","title":"Abdul Waheed"},
	
	{"subs":[{"subs":[{"id":"12826bf03710200044e0bfc8bcbe5db1","title":"Alfonso Griglen"},{"subs":[{"id":"06826bf03710200044e0bfc8bcbe5d8a","title":"Allyson Gillispie"},{"id":"b282abf03710200044e0bfc8bcbe5d28","title":"Allan Schwantd"}],"id":"22826bf03710200044e0bfc8bcbe5dec","title":"Alejandra Prenatt"}],"id":"0a826bf03710200044e0bfc8bcbe5d7a","title":"Adela Cervantsz"},{"id":"4847c4d4d773020058c92cf65e61038e","title":"Alisa Chinoy"},{"id":"71826bf03710200044e0bfc8bcbe5d3b","title":"Aileen Mottern "},{"id":"a8f98bb0eb32010045e1a5115206fe3a","title":"Abraham Lincoln"}],"id":"7c2e6109dbd65300bde15901cf9619b5","title":"Raju Koyagura"}
	
];

console.log(data)

值作为新数组,而不考虑它是哪个嵌套级别。

我的预期结果是这样的:

var result = ['36e1e015d703120058c92cf65e6103eb','60beb5e7d7600200e5982cf65e6103ad','62826bf03710200044e0bfc8bcbe5df1','06826bf03710200044e0bfc8bcbe5d8a','b282abf03710200044e0bfc8bcbe5d28','22826bf03710200044e0bfc8bcbe5dec','0a826bf03710200044e0bfc8bcbe5d7a','4847c4d4d773020058c92cf65e61038e','71826bf03710200044e0bfc8bcbe5d3b','a8f98bb0eb32010045e1a5115206fe3a','7c2e6109dbd65300bde15901cf9619b5'];

console.log(result);

2 回复 | 直到 7 年前

Nicolas 7 年前

你可以用JSON.stringify 要轻松地在树上行走:

const ids = [];
JSON.stringify(data, (key, value) => {
  if (key === 'id') ids.push(value);
  return value;
});

brk 7 年前

id . 推动 身份证件

var data = [{
    "id": "36e1e015d703120058c92cf65e6103eb",
    "title": "Alex McGibbon"
  },

  {
    "id": "60beb5e7d7600200e5982cf65e6103ad",
    "title": "Alex Linde"
  },

  {
    "subs": [{
      "id": "62826bf03710200044e0bfc8bcbe5df1",
      "title": "Abel Tuter"
    }],
    "id": "63e8479fdb161300bde15901cf96191c",
    "title": "Abdul Waheed"
  },

  {
    "subs": [{
      "subs": [{
        "id": "12826bf03710200044e0bfc8bcbe5db1",
        "title": "Alfonso Griglen"
      }, {
        "subs": [{
          "id": "06826bf03710200044e0bfc8bcbe5d8a",
          "title": "Allyson Gillispie"
        }, {
          "id": "b282abf03710200044e0bfc8bcbe5d28",
          "title": "Allan Schwantd"
        }],
        "id": "22826bf03710200044e0bfc8bcbe5dec",
        "title": "Alejandra Prenatt"
      }],
      "id": "0a826bf03710200044e0bfc8bcbe5d7a",
      "title": "Adela Cervantsz"
    }, {
      "id": "4847c4d4d773020058c92cf65e61038e",
      "title": "Alisa Chinoy"
    }, {
      "id": "71826bf03710200044e0bfc8bcbe5d3b",
      "title": "Aileen Mottern "
    }, {
      "id": "a8f98bb0eb32010045e1a5115206fe3a",
      "title": "Abraham Lincoln"
    }],
    "id": "7c2e6109dbd65300bde15901cf9619b5",
    "title": "Raju Koyagura"
  }

];

let newArray = [];

function getAllId(arr, key) {
  arr.forEach(function(item) {
    for (let keys in item) {
      if (keys === key) {
        newArray.push(item[key])
      } else if (Array.isArray(item[keys])) {
        getAllId(item[keys], key)
      }
    }

  })
}
getAllId(data, 'id')
console.log(newArray)

推荐文章

Paul Williams · 迭代数组时输出有问题

1 年前

pasty guacamole · 在结构体(C)中使用双指针访问2d数组上的信息

2 年前

Muffinman · 使用Excel O365,如何在两列上使用唯一性,对相关数据进行排序和复制?

2 年前

Suyash Nachankar · 为什么矩阵的所有行都与最后一行相同?

2 年前

Vyacheslav Verkhovin · C中二维数组的Typedef和指针上的访问

2 年前

Aditi · 我正在尝试用Java解决一个数字模式问题。我已经写了代码,如果有人能对我现有的sol进行更改,我将不胜感激

2 年前

neo · 为什么我不能访问以取消引用int指针作为索引的char指针数组中的位置

2 年前

Omprakash · 使用Google工作表中的多行和多列进行筛选

2 年前

Genki · Bash:如何从多维数组中的命名键获取值

2 年前

Insert0Name0Here · 将多维数组中的数组传递给C中的函数#

2 年前