相关疑难解决方法(0)

我useSelector从一个组件成功调用，该组件从 id 派生产品名称。

const productId = 25; // whatever

const productName = useSelector(
  (state) =>
    state.dashboard.dashboards.filter(
      ({ Id }) => Id === productId
    )[0].Name
);

但是，我的选择器依赖于productId，我将其存储在同一文件的变量中。我想将此useSelector调用存储在外部文件中，以便共享。我尝试以下，但id为undefined：

选择器.js

const productId = 25; // whatever

const productName = useSelector(
  (state) =>
    state.dashboard.dashboards.filter(
      ({ Id }) => Id === productId
    )[0].Name
);

some_file.js

import { useSelector } from "react-redux";
import { getProductNameById } from "./selectors";

const productId = 25;
const productName = useSelector(getProductNameById, …