使用map从数组中解构对象？

Question

我写了这个简单的代码，它解构一个对象数组，从每个键构建新数组。我正在学习 ES6 并想使用解构将其重构为一行代码，但我也不完全理解如何。

let candles = [{
  open: 1,
  high: 2,
  low: 0.5,
  close: 1.5,
  volume: 200
}];
let open = candles.map(x => x.open);
let high = candles.map(x => x.high);
let low = candles.map(x => x.low);
let close = candles.map(x => x.close);
let volume = candles.map(x => x.volume);

console.log(open, high, low, close, volume);

我在想它应该看起来像这样吗？

let [open, high, low, close, volume] = candles.map(key => key.value); 

但这显然是错误的！如果有人可以指导我正确的方法来做这件事，谢谢你的帮助！

Answer 1

let candles = [ {
  open: 1,
  high: 2,
  low: 0.5,
  close: 1.5,
  volume: 200
} ]

const { open, high, low, close, volume } = candles.reduce( ( accumulator, item ) => {
    Object.keys( item ).forEach( key => {
        accumulator[ key ] = ( accumulator[ key ] || [] ).concat( item[ key ] ) 
    } )
    return accumulator
}, {} )