https://medium.com/@tomat/lazy-loading-jquery-with-webpack-only-when-you-need-it-76a8ee144bdd

MyTextEditor.js

import React, { Component } from 'react';

export default class MyTextEditor extends Component {
  componentDidMount() {
    import('jquery').then((jquery) => {
      window.jQuery = jquery;
      window.$ = jquery;
      import('../lib/redactor/redactor.js').then(() => {
        $(this.refs.textarea).redactor();
      });
    });
  }

  render() {
    return (
      <textarea ref="textarea"></textarea>
    );
  }
}