返回对象数组的逗号分隔值的简单方法

问题描述

我有一个看起来像这样的对象:

I have an object that looks like this:

{
  "id": "123",
   "members": [
     { "id": 1, "name": "Andrew" },
     { "id": 2, "name": "Jim" }
   ]
}

我想要一种返回成员名称字符串的方法:"Andrew, Jim".

I'd like a method to return a string of member names: "Andrew, Jim".

与遍历成员列表并将其添加到数组相反，有没有一种方法可以在一行中干净地完成此操作(也许是underscore.js)?

As opposed to iterating through the member list and adding them to an array, is there a way to accomplish this cleanly in a single line (maybe underscore.js)?

推荐答案

members是Objects的Array，首先您需要创建具有名称的Array-在这种情况下，您可以使用 .map ，然后将其转换为Array到String-为此，您可以使用 .join

members is Array of Objects, first you need to create Array with names - for this case you can use .map and then convert this Array to String - to do that you can use .join

var data = {
  "id": "123",
   "members": [
     { "id": 1, "name": "Andrew" },
     { "id": 2, "name": "Jim" }
   ]
};

var result = data.members.map(function (e) {
  return e.name;
}).join(', ');

console.log(result);

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