使用ES6功能将对象转换为数组 [英] Converting Object to Array using ES6 features

问题描述

给出一个javascript对象，如何在ECMAScript-6中将其转换为数组?

Given a javascript object, how can I convert it to an array in ECMAScript-6 ?

例如，给定:

 var inputObj = {a:'foo', b:[1,2,3], c:null, z:55};

预期输出为:

 ['foo', [1,2,3], null, 55]

结果中元素的顺序对我来说并不重要.

The order of the elements in the result is not important to me.

推荐答案

使用(ES5)

Use (ES5) Array::map over the keys with an arrow function (for short syntax only, not functionality):

let arr = Object.keys(obj).map((k) => obj[k])

---

真正的ES6风格是编写一个生成器，并将可迭代的值转换为数组:

---

True ES6 style would be to write a generator, and convert that iterable into an array:

function* values(obj) {
    for (let prop of Object.keys(obj)) // own properties, you might use
                                       // for (let prop in obj)
        yield obj[prop];
}
let arr = Array.from(values(obj));

遗憾的是，没有对象迭代器使其成为ES6本机

Regrettably, no object iterator has made it into the ES6 natives.

这篇关于使用ES6功能将对象转换为数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！