数据格式 ↓

let data = [{
        name:'水果大全',
        id:'111',
        children:[{
          name:'浆果类',
          id:'112',
          children:[{       //从这一层提取
            name:'草莓',
            id:'113'
          },{
            name:'桑椹',
            id:'114'
          },{
            name:'黑莓',
            id:'115'
          }]
        },{
          name:'柑橘类',
          id:'116',
          children:[{    //从这一层提取
            name:'橘子',
            id:'117'
          },{
            name:'橙子',
            id:'118'
          }]
        }]
      },{
        name:'奥特曼大全',
        id:'119',
        children:[{
          name:'昭和类',
          id:'120',
          children:[{    //从这一层提取
            name:'杰克',
            id:'121'
          },{
            name:'泰罗',
            id:'122'
          },{
            name:'艾斯',
            id:'123'
          }]
        },{
          name:'平成类',
          id:'124',
          children:[{     //从这一层提取
            name:'迪迦',
            id:'125'
          },{
            name:'盖亚',
            id:'126'
          }]
        }]
      }]

理想效果↓

let data = [{
          name: '草莓',
          id: '113'
        }, {
          name: '桑椹',
          id: '114'
        }, {
          name: '黑莓',
          id: '115'
        }, {
          name: '橘子',
          id: '117'
        }, {
          name: '橙子',
          id: '118'
        }, {
          name: '杰克',
          id: '121'
        }, {
          name: '泰罗',
          id: '122'
        }, {
          name: '艾斯',
          id: '123'
        }, {
          name: '迪迦',
          id: '125'
        }, {
          name: '盖亚',
          id: '126'
        }]

如上所示，从第二层children提取并转为在一个对象里面，我该怎么操作呢。

在这里先谢谢各位大神大哥们的解答，小弟感激不尽！

data.map(item=>item.children.map(child=>child.children)).flat(Infinity)

function loop(data, arr) {
    for (var item of data) {
        if (item.children) {
            arr = loop(item.children, arr)
        } else {
            arr = arr.concat(data)
        }
    }

    return arr
}

var filterData = loop(data, []);
// 去重
var temp = {}
var result = filterData.reduce(function(sum, arrItem) {
    if (!temp[arrItem.id]) {
        temp[arrItem.id] = arrItem.id
        sum.push(arrItem)
    }
    return sum
}, [])
// console.log('result', result)