将 React 组件返回为 object 值并将道具绑定到它

Question

有一个全局钩子在使用时会返回反应组件：

const { SomeComponent1, SomeComponent2 } = useHook({ prop1, prop2 })

如何将道具传递给从钩子返回的组件？

const useHook = ({ prop1, prop2 }) => {

  return {
    SomeComponent1, // <-- I'd like to 'bind' props to the component here
    SomeComponent2,
    // THE CODE BELOW IS INCORRECT
    // it's a way to illustrate what I am after:
    // SomeComponent1: <SomeComponent1 prop1={prop1} />
  }
}

将道具传递给被破坏的反应组件对我来说是不行的：

const { Comp1, Comp2 } = useHook()

return (
  <Comp1 prop={prop1} />
)

Answer 1

您可以将组件创建为功能组件并在 useHook 中使用useMemo以防止在每次渲染时重新安装组件

const useHook = ({ prop1, prop2 }) => {

  const SomeComponent1Wrap = useMemo(() => ( ) => {
     return <SomeComponent1 prop={prop1} />
  }, [props1]);

  const SomeComponent2Wrap = useMemo(() => ( ) => {
     return <SomeComponent2 prop={prop2} />
  }, [props2]);

  return {
    SomeComponent1: SomeComponent1Wrap, 
    SomeComponent2: SomeComponent2Wrap,
  }
}

Answer 2

最常见和最优雅的解决方案将是基于条件的渲染。 您可以使用基于三元的运算符来显示您的组件例如。

import React,{useState} from "react";
import {Comp1} from "./comp1"; 
import {Comp2} from "./comp2"; 
function Test(){
    const [display,setDisplay] = useState(true);
    render(){
        <>
            {display ? <Comp1 props={props} /> : <Comp2 props={props} /> }
        </>
    }
}