SOURCE

let todoList = [
  {
    scopedSlotsTitle: 'orgNode',
    title: '组织一',
    id: '0752',
    parentId: "0010",
    children: [
      {
        scopedSlotsTitle: 'orgNode',
        title: '子组织一',
        id: '0001',
        parentId: "0010",
        children: [
          {
            scopedSlotsTitle: 'userNode',
            title: '杜宇坤',
            key: 'OPVhHrPM',
            online: true,
            children: []
          }
        ]
      },{
      	scopedSlotsTitle: 'orgNode',
        title: '子组织二',
        id: '0002',
        parentId: "0010",
        children: []
      }
    ]
  },{
  	scopedSlotsTitle: 'orgNode',
  	title: '组织二',
  	id: '0753',
  	parentId: "0010",
  	children: [
			{
        scopedSlotsTitle: 'userNode',
        title: '杜宇坤',
        key: 'OPVhHrPM',
        online: true,
        children: []
      }
    ]
  },{
  	scopedSlotsTitle: 'orgNode',
  	title: '组织三',
  	id: '0754',
  	parentId: "0010",
    children: []
  }
]

/** 
 * 格式化群组数据
 * @param {Array} target 目标数组
 * @param {Array} target 待处理数组
 */
function formatList (target, todoList) {
  todoList.forEach(function (element) {
    let newItem = {}
    if (element.scopedSlotsTitle === 'orgNode') {
      // 处理组织节点
      newItem = {
        key: element.id,
        title: element.title,
        parentId: element.parentId,
        online: false,
        scopedSlots: {
          title: element.scopedSlotsTitle
        },
        children: formatList([], element.children)
      }
    } else if (element.scopedSlotsTitle === 'userNode') {
      // 处理用户节点
      newItem = {
        key: element.key,
        title: element.title,
        parentId: '',
        online: element.online,
        scopedSlots: {
          title: element.scopedSlotsTitle
        },
        children: []
      }
    }
    target.push(newItem)
  })
}


const testList = formatList([], todoList)

console.log(testList)