Folders example

folders.js

const folders = [{
  id: 1,
  name: 'JavaScript',
  children: [{
    id: 2,
    name: 'Frameworks',
    children: [{
      id: 3,
      name: 'Angular'
    }, {
      id: 4,
      name: 'Vue'
    }]
  }, {
    id: 5,
    name: 'Libraries',
    children: [{
      id: 6,
      name: 'React'
    }]
  }]
}]