给定对象数组，找到具有特定键的对象 [英] Given an array of objects, find the object with a particular key

问题描述

给定一个对象数组，在JS中使用特定键查找对象的最佳方法是什么?

Given an array of objects, what is the best way to find the object with a particular key in JS?

使用jQuery和underscoreJS很好.我只是在寻找最简单/最少的代码答案.

Using jQuery and underscoreJS is fine. I'm just looking for the easiest / least code answer.

示例: 对象数组，其中每个对象都有一个名称".查找具有特定名称"的对象.

Example: An array of objects, where each object has a "name". Find the object with a particular "name".

var people = [{name: "A"}, {name: "B"}, {name: "C"}];

我当前的解决方案: 传入数组，键(例如名称")和值(例如"C").

My current solution: Pass in the array, the key (e.g. "name"), and the value (e.g. "C").

function getObject(myArray, searchKey, searchValue) {
  myArray.forEach(function(element){
    if (element[searchKey] == searchValue) {
      return element;
    }
  });
}

推荐答案

您可以使用Underscore.js的 _.where 函数，像这样

You can use Underscore.js's _.where function, like this

console.log(_.where(people, {
    "name": "C"
}));
# [ { name: 'C' } ]

这将返回数组中的所有对象，该对象与我们作为第二个参数传递的对象完全匹配.

This returns all the objects in the array, which exactly matches the object we pass as the second argument.

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