这就是我的解决方案:

const filterObject = (obj, condition) => {
    const filteredObj = {};
    Object.keys(obj).map(key => {
      if (condition(key)) {
        dataFiltered[key] = obj[key];
      }
    });
  return filteredObj;
}

基于以下两个答案:

https://stackoverflow.com/a/56081419/13819049 https://stackoverflow.com/a/54976713/13819049

我们可以:

const original = { a: 1, b: 2, c: 3 };
const allowed = ['a', 'b'];

const filtered = Object.fromEntries(allowed.map(k => [k, original[k]]));

哪个更干净更快:

https://jsbench.me/swkv2cbgkd/1

你现在可以使用Object.fromEntries方法(检查浏览器支持)使它更短更简单:

const raw = { item1: { prop:'1' }, item2: { prop:'2' }, item3: { prop:'3' } };

const allowed = ['item1', 'item3'];

const filtered = Object.fromEntries(
   Object.entries(raw).filter(
      ([key, val])=>allowed.includes(key)
   )
);

阅读更多信息:Object.fromEntries

利用ssube的答案。

这是一个可重用的版本。

Object.filterByKey = function (obj, predicate) {
  return Object.keys(obj)
    .filter(key => predicate(key))
    .reduce((out, key) => {
      out[key] = obj[key];
      return out;
    }, {});
}

叫它use

const raw = {
  item1: { key: 'sdfd', value:'sdfd' },
  item2: { key: 'sdfd', value:'sdfd' },
  item3: { key: 'sdfd', value:'sdfd' }
};

const allowed = ['item1', 'item3'];

var filtered = Object.filterByKey(raw, key => 
  return allowed.includes(key));
});

console.log(filtered);

ES6箭头函数的美妙之处在于，你不必将allowed作为参数传入。

另一条捷径

函数filterByKey (v键){ const newObj ={}; keys.forEach(关键= > {v(例子)? newObj(例子)= v(例子):"}); 返回newObj; ｝ / /给定 让obj ={foo: "bar"， baz: 42,baz2:"blabla"， "spider":"man"， monkey:true}; / /当 let outtobj =filterByKey(obj，["bar"，"baz2"，"monkey"]); / /然后 console.log (outObj); / / { // "baz2": "blabla"， // "monkey": true / /}

这就是我的解决方案:

const filterObject = (obj, condition) => {
    const filteredObj = {};
    Object.keys(obj).map(key => {
      if (condition(key)) {
        dataFiltered[key] = obj[key];
      }
    });
  return filteredObj;
}