René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"removeEmptyFloder","articleBody":"```js\r\nlet Arr = [\r\n  { name: \"1\", type: \"floder\", children: [{ name: \"1\", type: \"file\" }] },\r\n  {\r\n    name: \"2\",\r\n    type: \"floder\",\r\n    children: [\r\n      {\r\n        name: \"1\",\r\n        type: \"floder\",\r\n        children: [\r\n          {\r\n            name: \"1\",\r\n            type: \"floder\",\r\n            children: [{ name: \"1\", type: \"floder\", children: [] }],\r\n          },\r\n        ],\r\n      },\r\n    ],\r\n  },\r\n  {\r\n    name: \"3\",\r\n    type: \"floder\",\r\n    children: [\r\n      {\r\n        name: \"1\",\r\n        type: \"floder\",\r\n        children: [{ name: \"1\", type: \"floder\", children: [] }],\r\n      },\r\n    ],\r\n  },\r\n];\r\n\r\nfunction removeEmptyFloder(arr) {\r\n  const emptyFloder = []\r\n  const root = {\r\n    children: arr,\r\n  }\r\n\r\n  function walkTree(tree = [], parent) {\r\n    for (let node of tree) {\r\n      node.parent = parent\r\n      if (node.children \u0026\u0026 node.children.length) {\r\n        walkTree(node.children, node)\r\n      }\r\n      // mark empty floder\r\n      if (node.type === 'floder') {\r\n        if (!node.children || node.children.length === 0) {\r\n          emptyFloder.push(node)\r\n        }\r\n      }\r\n    }\r\n  }\r\n\r\n  walkTree(arr, root)\r\n\r\n  function removeSelf(node) {\r\n    if (node.parent) {\r\n      node.parent.children = node.parent.children.filter(item =\u003e item !== node)\r\n      if (node.parent.children.length === 0) {\r\n        removeSelf(node.parent)\r\n      }\r\n    }\r\n  }\r\n\r\n  emptyFloder.forEach(removeSelf)\r\n\r\n  return JSON.parse(JSON.stringify(root.children, (key, value) =\u003e key === 'parent' ? undefined : value))\r\n}\r\n```","author":{"url":"https://github.com/jdz321","@type":"Person","name":"jdz321"},"datePublished":"2021-06-25T08:15:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/3/fe-Involution/issues/3"}