在打字稿中将道具传递给 HOC

Question

我有一个布局 HOC 调用 "withLayout"

interface WithLayoutProps {
  isHomePage?: boolean;
}

const withLayout = <P extends object>(Component: ComponentType<P>) => (
  props: P & WithLayoutProps,
): ReactElement => {

  return (
    <div>
      {!!isHomePage?<Header1 />:<Header2 />} //How the home page pass the "isHomePage" to there?
      <main>
        <Component {...props} />
      </main>
    </div>
  );
};

export default withLayout;

所有页面都是用这个组件布局的

const Home: NextPage = withLayout(() => {

  return (
    <div>home</div>
  )
})

但是在主页中，我们需要不同的 header，例如 <Header1 /> 和其他页面使用

如何将道具 isHomePage 传递给 withlayout？

Answer 1

How could I pass the props isHomePage to the withlayout ?

只需添加 isHomePage 作为 HOC 的额外参数。

withLayout 仍然是一个普通函数，因此您可以有更多或更少的参数（根据需要）。

const withLayout = <P extends object>(
  Component: ComponentType<P>,
  isHomePage: boolean = true // extra argument with default value
) => (
  props: P & WithLayoutProps,
): ReactElement => {...};

// usage:
const Home: NextPage = withLayout(
  () => (<div>home</div>)
})

const AboutUs: NextPage = withLayout(
  () => (<div>About Us</div>),
  false // not home page
)

在打字稿中将道具传递给 HOC

Pass props to HOC in typescript

typescript

reactjs

high-order-component