@atlaskit/renderer/dist/es2019/text/nodes/taskItem.js

Renderer component

import { reduce } from './';
const taskItem = (node, schema) => {
  const result = [];
  let previousNodeType = '';
  const state = node.attrs.state === 'DONE' ? '[x]' : '[]';
  node.forEach(n => {
    const text = reduce(n, schema);
    if (previousNodeType === 'mention' && !text.startsWith(' ')) {
      result.push(` ${text}`);
    } else {
      result.push(text);
    }
    previousNodeType = n.type.name;
  });
  return `${state} ${result.join('').trim()}`;
};
export default taskItem;