问我试图将一些HTML插入到我的光标位置上的jodit-react编辑器中，它以某种方式插入，但不完全是在我的光标位置。

EN

import React from "react";
import ReactDOM from "react-dom";
import jodit from "jodit";
import "./App.css";
import JoditEditor from "jodit-react";

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      content: "",
      pos: 0,
    };
  }

  updateContent = (value) => {
    this.setState({
      content: value,
      pos: window.getSelection().getRangeAt(0).startOffset,
    });
  };
  buttonClick = (event) => {
    var abc = this.state.content.slice(
      this.jodit.selectionStart,
      this.jodit.selectionEnd + 1
    );
    var startString = this.state.content.substring(0, this.state.pos + 3);
    var endString = this.state.content.substring(this.jodit.selectionEnd);
    console.log("abc" + startString + "::::::" + endString);
    this.setState({
      content: startString + '<a href="#">Inserted Text</a>' + endString,
    });
  };
  config = {
    readonly: false,
  };
  /**
   * @property Jodit jodit instance of native Jodit
   */
  jodit;
  setRef = (jodit) => (this.jodit = jodit);
  render() {
    return (
      <>
        <JoditEditor
          ref={this.setRef}
          value={this.state.content}
          config={this.config}
          tabIndex={1} // tabIndex of textarea
          onBlur={this.onFocusRemove}
          onChange={this.updateContent}
        />
        <button onClick={this.buttonClick}>insert</button>
      </>
    );
  }
}

export default App;