Javascript 子项:空 }, { 名称:“某些产品名称7”, id:'12345678', 数据:[9,5,355764335], 子项:空 } ] } } ] } } ] } }, { 名称:“某子公司名称3”, id:'1234', 数据:空, 儿童:{ 级别:“级
子项:空 }, { 名称:“某些产品名称7”, id:'12345678', 数据:[9,5,355764335], 子项:空 } ] } } ] } } ] } }, { 名称:“某子公司名称3”, id:'1234', 数据:空, 儿童:{ 级别:“级别3”, 项目:[ { 名称:'某个区域名称5', id:'12345', 数据:空, 儿童:{ 级别:“级别4”, 项目:[ { 名称:'某个本地名称5', id:'123456', 数据:空, 儿童:{ 级别:“级别5”, 项目:[ { 名称:“某些产品名称8”, id:'1234567', 数据:[2,35,235,35554,554], 子项:空 } ] } } ] } } ] } } ] } } ] }; 常数arr=[]; 函数getMatch(数据、过滤器){ if(数据和数据项长度){ 让我们看看这个项目; 对于(设i=0,j=data.items.length;iJavascript 子项:空 }, { 名称:“某些产品名称7”, id:'12345678', 数据:[9,5,355764335], 子项:空 } ] } } ] } } ] } }, { 名称:“某子公司名称3”, id:'1234', 数据:空, 儿童:{ 级别:“级,javascript,ecmascript-6,underscore.js,lodash,Javascript,Ecmascript 6,Underscore.js,Lodash,子项:空 }, { 名称:“某些产品名称7”, id:'12345678', 数据:[9,5,355764335], 子项:空 } ] } } ] } } ] } }, { 名称:“某子公司名称3”, id:'1234', 数据:空, 儿童:{ 级别:“级别3”, 项目:[ { 名称:'某个区域名称5', id:'12345', 数据:空, 儿童:{ 级别:“级别4”, 项目:[ { 名称:'某个本地名称5', id:'123456', 数据:空, 儿童:{ 级别:“级别5”, 项目:[ { 名
const data = {
level : 'Level 1',
items : [
{
name : 'Some Business Name',
id : '123',
data : null,
child : {
level : 'Level 2',
items : [
{
name : 'Some Sub-Business Name',
id : '1234',
data : null,
child : {
level : 'Level 3',
items : [
{
name : 'Some Area Name',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
},
{
name : 'Some Product Name 2',
id : '12345678',
data : [9, 5, 35, 5764, 335],
child : null
}
]
}
},
{
name : 'Some Local Name 2',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 3',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
},
{
name : 'Some Product Name 4',
id : '12345678',
data : [9, 5, 35, 5764, 335],
child : null
}
]
}
}
]
}
},
{
name : 'Some Area Name 2',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name 3',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 5',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
}
]
}
}
]
}
}
]
}
}
]
}
},
{
name : 'Some Business Name 2',
id : '123',
data : null,
child : {
level : 'Level 2',
items : [
{
name : 'Some Sub-Business Name 2',
id : '1234',
data : null,
child : {
level : 'Level 3',
items : [
{
name : 'Some Area Name 3',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name 4',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 6',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
},
{
name : 'Some Product Name 7',
id : '12345678',
data : [9, 5, 35, 5764, 335],
child : null
}
]
}
}
]
}
}
]
}
},
{
name : 'Some Sub-Business Name 3',
id : '1234',
data : null,
child : {
level : 'Level 3',
items : [
{
name : 'Some Area Name 5',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name 5',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 8',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
}
]
}
}
]
}
}
]
}
}
]
}
}
]
};
const arr = [];
function getMatch(data, filters) {
if (data && data.items.length) {
let _thisItem;
for (let i = 0, j = data.items.length; i < j; i += 1) {
_thisItem = data.items[i];
for (let x = 0, y = filters.length; x < y; x += 1) {
if (_thisItem.name === filters[x]) {
arr.push(_thisItem);
}
}
if (_thisItem.child) {
getMatch(_thisItem.child, filters);
}
}
}
}
const filterList = [
['Some Business Name', 'Some Business Name 2'],
['Some Sub-Business Name', 'Some Sub-Business Name 2'],
['Some Area Name', 'Some Area Name 3'],
['Some Local Name 2', 'Some Local Name 4']
];
getMatch(data, [].concat(...filterList));
console.log(arr)
/*
Output:
0: {name: "Some Business Name", id: "123", data: null, child: {…}}
1: {name: "Some Sub-Business Name", id: "1234", data: null, child: {…}}
2: {name: "Some Area Name", id: "12345", data: null, child: {…}}
3: {name: "Some Local Name 2", id: "123456", data: null, child: {…}}
4: {name: "Some Business Name 2", id: "123", data: null, child: {…}}
5: {name: "Some Area Name 4", id: "12345", data: null, child: {…}}
6: {name: "Some Local Name 4", id: "123456", data: null, child: {…}}
Would like to see eventually:
{
level : 'Level 1',
items : [
{
name : 'Some Business Name',
id : '123',
data : null,
child : {
level : 'Level 2',
items : [
{
name : 'Some Sub-Business Name',
id : '1234',
data : null,
child : {
level : 'Level 3',
items : [
{
name : 'Some Area Name',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name',
id : '123456',
data : null,
child : null // removed because only the immediate parent was selected, but not this item
},
{
name : 'Some Local Name 2',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 3',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
},
{
name : 'Some Product Name 4',
id : '12345678',
data : [9, 5, 35, 5764, 335],
child : null
}
]
}
}
]
}
},
{
name : 'Some Area Name 2',
id : '12345',
data : null,
child : null // removed because only the immediate parent was selected, but not this item
}
]
}
}
]
}
},
{
name : 'Some Business Name 2',
id : '123',
data : null,
child : {
level : 'Level 2',
items : [
{
name : 'Some Sub-Business Name 2',
id : '1234',
data : null,
child : {
level : 'Level 3',
items : [
{
name : 'Some Area Name 3',
id : '12345',
data : null,
child : {
level : 'Level 4',
items : [
{
name : 'Some Local Name 4',
id : '123456',
data : null,
child : {
level : 'Level 5',
items : [
{
name : 'Some Product Name 6',
id : '1234567',
data : [2, 35, 235, 35554, 55554],
child : null
},
{
name : 'Some Product Name 7',
id : '12345678',
data : [9, 5, 35, 5764, 335],
child : null
}
]
}
}
]
}
}
]
}
},
{
name : 'Some Sub-Business Name 3',
id : '1234',
data : null,
child : null // removed because only the immediate parent was selected, but not this item
}
]
}
}
]
};
*/
function findPathBFS(source, goal) {
const dataSource = JSON.parse(JSON.stringify(source))
const res = []
res.push(...dataSource)
for (let i = 0; i < res.length; i++) {
res[i].num = i
}
for (let i = 0; i < res.length; i++) {
const curData = res[i]
if (curData.name === goal) {
const result = []
return (function findParent(data) {
result.unshift({name:data.name,num:data.num});
if (data.parent) return findParent(data.parent)
return result
})(curData)
}
if (curData.child) {
res.push(...curData.child.items.map((d,i) => {
d.parent = curData;
d.num = i;
return d
}))
}
}
return []
}
let array = findPathBFS(data.items, 'Some Area Name 3');
console.log(array);
const newData = prune();
console.log(newData)
function prune(){
let count=0;
const currentData = JSON.parse(JSON.stringify(data));
const items = currentData.items;
const arr = array.map(e=>e.num);
_prune(items,count,arr);
return currentData;
}
function _prune(items,count,arr){
const item = JSON.parse(JSON.stringify(items[arr[count]]));
items.length=1;
items[0]=item;
count++;
if(count<arr.length){
_prune(items[0].child.items,count,arr)
}
if(count===arr.length){
if(items[0]&&items[0].child){
for(let _item in items[0].child.items){
_item.child=null;
}
}
}
}
// not sure why did you need a two-dimensional array here.
const filterList = [
'Some Business Name',
'Some Business Name 2',
'Some Sub-Business Name',
'Some Sub-Business Name 2',
'Some Area Name',
'Some Area Name 3',
'Some Local Name 2',
'Some Local Name 4',
];
// filter by name
let arr = _.filterDeep( data,
(item, key, parentVal, ctx) => {
return (_.includes(filterList, item.name) ||
(ctx.parent &&
_.includes(filterList, _.get(ctx, 'parent.parent.parent.value.name')))
);
},
{ tree: { children: 'items' } }
);
// remove empty 'child'
arr = _.filterDeep( arr,
(val, key) => {
return key != 'child' || (val !== null && val.items.length > 0);
},
{ leavesOnly: false, onTrue: { skipChildren: false } }
);