plain-recursion-comments-structure.js

const comments = [
  {
    text: 'comment 1',
    comments: [
      {
        text: 'comment 2',
        comments: [],
      },
    ],
  },
  {
    text: 'comment 3',
    comments: [
      {
        text: 'comment 4',
        comments: [],
      },
      {
        text: 'comment 5',
        comments: [{
          text: 'comment 6',
          comments: [{
            text: 'comment 7',
            comments: [
              {
                text: 'comment 8',
                comments: [],
              },
              {
                text: 'comment 9',
                comments: [],
              }
            ],
          }],
        }]
      },
      {
        text: 'comment 10',
        comments: [],
      },
    ],
  },
];