How to pass particular property to all child components in react?-CodePudding

I am absolute beginner in react. I have to pass particular property to all the components inside the div without passing them into individual, For Example, Instead of doing this:

 function App() {
    return (
      <div>
        <Component1 props = {propObject}/>
        <Component2 props = {propObject}/>
        <Component3 props = {propObject}/>
      </div>
    );
}

How can I achieve something like this? :

function App() {
  return (
    <div props={propObject}>
      <Component1 />
      <Component2 />
      <Component3 />
    </div>
  );
}

CodePudding user response：

React Context

provides a way to share values to child components without having to explicitly pass a prop through every level of the tree.

You need to import React.context from react

syntax:

// context.js

import React, { createContext } from "react"

export const MyContext = React.createContext(null);

Now You need to create a provider of this context, to pass the current context value to the tree below. So you need to wrap all of your child component by the React.Provider.

syntax:

// MainComponent.js
import { MyContext } from "./context"
import { ChildComponent1, ChildComponent2, ChildComponent3 } from "./childcomponent" 

const MainComponent = () => {
  const myObject = {name: "John"}

  return (
    <MyContext.Provider props={myObject}>
      <ChildComponent1 />
      <ChildComponent2 />
      <ChildComponent3 />
    </MyContext.Provider>
  )
}

Now all the child component of this MainComponent has access of this props value which is provided by MyContext.Provider. Now you can simply get that values to your child components.

syntax:

// childcomponent.js
import React, { useContext } from "react"
import { MyContext } from "./context"

export const ChilcComponent1 = () => {
  const props = useContext(MyContext)
  return (
    <p>
      My name is: {props?.key}
    </p>
  )
}

CodePudding user response：

You can use from ThemeProvider:

function App() {
      return (
        <ThemeProvider props = {propObject}>
          <Component1 />
          <Component2 />
          <Component3 />
        </ThemeProvider >
      );
    }