share value from one component into another in reactjs

Question

I have used "React Draft Wysiwyg" for this. Here in the code below I want to access the value of the variable value editor.js file in the desktop.js file. how can I do that?

editor.js:

export default class TextEditor extends Component {
render(){
  return(){
        <textarea
          disabled
         value={draftToHtml(convertToRaw(editorState.getCurrentContent()))}
        ></textarea>
    
      
    );
  }
}

desktop.js:

export const Desktop = () => {

    return (
      
        <div className="splitScreen">
            <TextEditor/>

        </div>
}

Answer 1

I suggest using useState in desktop.js, while passing the state of textValue and the setState function as props to TextEditor component:

import React, { useState } from "react";

export const Desktop = () => {
  const [textValue, setTextValue] = useState("");

  return (
    <div className="splitScreen">
      <TextEditor textValue={textValue} setTextValue={setTextValue} />
    </div>
  );
};

And then using the two props inside TextEditor:

import React, { Component } from "react";
import { Editor } from "react-draft-wysiwyg";
import { EditorState, convertToRaw } from "draft-js";
import "./editor.css";
import "react-draft-wysiwyg/dist/react-draft-wysiwyg.css";
import draftToHtml from "draftjs-to-html";

export default class TextEditor extends Component {
  state = {
    editorState: EditorState.createEmpty(),
  };

  onEditorStateChange = (editorState) => {
    this.setState({
      editorState,
    });
  };

  render() {
    const { editorState } = this.state;

    // here you set the textValue state for the parent component
    this.props.setTextValue(
      draftToHtml(convertToRaw(editorState.getCurrentContent()))
    );

    return (
      <div className="editor">
        <Editor
          editorState={editorState}
          toolbarClassName="toolbarClassName"
          wrapperClassName="wrapperClassName"
          editorClassName="editorClassName"
          onEditorStateChange={this.onEditorStateChange}
        />
        <textarea
          disabled
          text_value={this.props.textValue} // here you use the textValue state passed as prop from the parent component
        ></textarea>
      </div>
    );
  }
}