在JavaScript中合并2个json

Question

所以我有2个具有相同参数的json。 基于这一参数，我想将这两个json合并为单个json。

json 1 = [{"serverid":65,"name":"Apple"},{"serverid":98,"name":"Mac"}]

json 2 = [{"serverid":98,"count":9},{"serverid":65,"count":2}]

resultant json = [{"serverid":65,"name":"Apple","count":2},{"serverid":98,"name":"Mac","count":9}]

Answer 1

您可以使用Object.assign（）

const a = [{"serverid":65,"name":"Apple"},{"serverid":98,"name":"Mac"}];
const b = [{"serverid":65,"count":2},{"serverid":98,"count":9}];
const c = a.map((obj, index) => Object.assign(obj, b[index]));

了解有关Object.assign（）的更多信息

 const a = [{"serverid":65,"name":"Apple"},{"serverid":98,"name":"Mac"}]; const b = [{"serverid":65,"count":2},{"serverid":98,"count":9}]; const c = a.map((obj, index) => Object.assign(obj, b[index])); console.log(c) 

Answer 2

一种干净的方法是使用对象传播运算符。 对象散布运算符在对象文字中所做的就是将所有旧值复制到新创建的对象中。

例：

 const json1 = [{"serverid": 65,"name": "Apple"},{"serverid":98,"name":"Mac"}] const json2 = [{"serverid":65,"count":2},{"serverid":98,"count":9}] const newArr = [] for (let i = 0; i < json1.length; i++) { const obj = { ...json1[i], ...json2[i] } newArr.push(obj); } console.log(newArr) 

警告：

这是相对较新的ES7语法，您必须转换代码（使用例如babel）才能具有完全的浏览器兼容性。