如何将 2 个数组连接到节点中的单个 json/array

How to join 2 array into a single json/array in node

我在节点中有 2 个数组。

['3', '7' ]

[ 'Circulatory and Cardiovascular', 'Respiratory' ]

我想产生如下结果。

{{"id": "3","name":"Circulatory and Cardiovascular"},{"id": "7","name":"Respiratory"}}

我假设你想创建这个数据结构(数组而不是散列):

[{"id": "3","name":"Circulatory and Cardiovascular"},{"id": "7","name":"Respiratory"}]

在这种情况下,您可以像这样使用 lodash

var _ = require('lodash');

var a1 = ['3', '7' ];
var a2 = [ 'Circulatory and Cardiovascular', 'Respiratory' ];

var obj = _.merge(_.map(a1, function (o) { return { id : o } }), _.map(a2, function (o) { return { name : o } }))

console.log(obj);

很抱歉,输出中是一个数组,但它更容易。 你可以这样做:

var idArray = ['3', '7' ];
var nameArray = [ 'Circulatory and Cardiovascular', 'Respiratory' ];
var newArray = [];

for (var i = 0; i < idArray.length; i++) {
    newArray.push({"id": idArray[i], "name": nameArray[i]});
}

输出:

[ { id: '3', name: 'Circulatory and Cardiovascular' },
  { id: '7', name: 'Respiratory' } ]

我不确定这是个好主意,但你可以将你的新数组转换成这样的对象:

var newObject = newArray.reduce(function(o, v, i) {
  o[i] = v;
  return o;
}, {});

输出:

{ '0': { id: '3', name: 'Circulatory and Cardiovascular' },
  '1': { id: '7', name: 'Respiratory' } }

或者另一种方式:

Object.setPrototypeOf(newArray, Object.prototype); // Now it's an object

输出:

Object [
  { id: '3', name: 'Circulatory and Cardiovascular' },
  { id: '7', name: 'Respiratory' } ]

希望对您有所帮助!