flattenPages

flattenPages

const arr = [
  {
    title: '首頁',
    id: 11,
    parent_id: 0,
    children: [
      {
        title: '子頁',
        id: 12,
        parent_id: 11,
        children: []
      }
    ]
  },
  {
    title: '產品頁',
    id: 21,
    parent_id: 0,
    children: []
  }
]

function flattenPage (pages, newArr = []) {
  pages.forEach(page => {
    const _page = Object.assign({}, page)
    delete _page.children
    newArr.push(_page)
    if (page.children.length > 0) {
      flattenPage(page.children, newArr)
    }
  })
  return newArr
}