获取draft.js中的插入符号位置(行号)

import { EditorState, SelectionState } from 'draft-js';

// 获取插入符号位置（行号）
function getInsertionPosition(editorState) {
  const contentState = editorState.getCurrentContent();
  const selectionState = editorState.getSelection();
  const startKey = selectionState.getStartKey();
  const block = contentState.getBlockForKey(startKey);
  const lineNumber = block.getKey();

  return lineNumber;
}

// 使用示例
const editorState = EditorState.createEmpty();
const insertionPosition = getInsertionPosition(editorState);
console.log(insertionPosition);