reactjs - TypeError : Invalid attempt to destructure non-iterable instance. 为了迭代，

Question

我正在尝试在 React Native 上使用 API 上下文，但出现以下错误。

TypeError:解构不可迭代实例的无效尝试。为了可迭代，非数组对象必须具有 Symbol.iterator 方法。

我的代码是这样的

import React, {createContext, useState, useContext} from 'react';

const PurchasesContext = createContext();

export const PurchasesContextProvider = ({children}) => {
  const [purchases, setPurchases] = useState([]);
  return (
    <PurchasesContext.Provider value={[purchases, setPurchases]}>
      {children}
    </PurchasesContext.Provider>
  );
};

export const usePurchasesContext = () => {
  const [purchases, setPurchases] = useContext(PurchasesContext);

  return {
    purchases,
    setPurchases,
  };
};

然后我就这样用了

const {purchases, setPurchases} = usePurchasesContext();

有人知道为什么会发生这种情况吗？我现在已经尝试了几个小时，该如何解决？

Answer 1

没关系，我通过执行以下操作解决了它

const PurchasesContext = createContext([[], () => {}]);