开箱数组在JavaScript中不同的变量 [英] Unpacking array into separate variables in JavaScript

问题描述

这是一个简单的问题，我已经这样做。我只是不记得如何，或究竟它被称为

This is a simple problem, and I've done it before. I just can't remember how, or what exactly it was called.

在Python中我可以这样做：

In python I can do this:

arr = ['one', 'two']
one, two = arr

我

如何做到这一点在JavaScript中？

how do I do that in JavaScript?

推荐答案

这是目前AFAIK唯一的跨浏览器兼容的解决方案：

This is currently the only cross-browser-compatible solution AFAIK:

var one = arr[0],
    two = arr[1];

---

ES6将使解构赋值：

---

ES6 will allow destructuring assignment:

var [x, y] = ['foo', 'bar'];
console.log(x); // 'foo'
console.log(y); // 'bar'

或者，要坚持你最初的例子：

Or, to stick to your initial example:

var arr = ['one', 'two'];
var [one, two] = arr;

这篇关于开箱数组在JavaScript中不同的变量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！