CoderFunda
  • Home
  • About us
    • Contact Us
    • Disclaimer
    • Privacy Policy
    • About us
  • Home
  • Php
  • HTML
  • CSS
  • JavaScript
    • JavaScript
    • Jquery
    • JqueryUI
    • Stock
  • SQL
  • Vue.Js
  • Python
  • Wordpress
  • C++
    • C++
    • C
  • Laravel
    • Laravel
      • Overview
      • Namespaces
      • Middleware
      • Routing
      • Configuration
      • Application Structure
      • Installation
    • Overview
  • DBMS
    • DBMS
      • PL/SQL
      • SQLite
      • MongoDB
      • Cassandra
      • MySQL
      • Oracle
      • CouchDB
      • Neo4j
      • DB2
      • Quiz
    • Overview
  • Entertainment
    • TV Series Update
    • Movie Review
    • Movie Review
  • More
    • Vue. Js
    • Php Question
    • Php Interview Question
    • Laravel Interview Question
    • SQL Interview Question
    • IAS Interview Question
    • PCS Interview Question
    • Technology
    • Other

06 August, 2024

Traverse over tree type structured data using JavaScript

 Programing Coderfunda     August 06, 2024     No comments   

I have a data set having parent and nested children in it. The purpose of this data is to traverse over parent.
1
/ \
2 3
/ \ / \
4 5 6 7



First traverse 1,2,4 Now 4 has no children During back traverse in else part output 4, 2 then it should go to 2, 5


Now, 5 is end. Trace isVisited in parent nodes if any of the child is property isVisited as false.
5,2,1,3



Expected Output:-
1, 2, 4, 2, 5, 2, 1, 3, 6, 3, 7



Once the node end is reached start traversing reverse direction from end of node to start e.g. child2 where other children were left off and were not visited yet.


Data Set in parent child relationship
[
{
"id": 0,
"children": [
{
"id": 3,
"parentId": 0,
"children": [
{
"id": 6,
"parentId": 3,
"children": [
{
"id": 11,
"parentId": 6,
"children": [
{
"id": 10,
"parentId": 11,
"children": [
{
"id": 8,
"parentId": 10,
}
]
}
]
},
{
"id": 9,
"parentId": 6,
"children": [
{
"id": 1,
"parentId": 9,
"children": [
{
"id": 7,
"parentId": 1,
}
]
}
]
},
{
"id": 4,
"parentId": 6,
}
]
}
]
}
]
}
]

let result = [];
const handleTree = ( tree, count) => {
count = count || 0
const tree = _.clone(data);
if( tree ){
tree.forEach( ( t: any, i: string | number ) => {
let deepCopy = _.clone({...t });
delete deepCopy.children;
const { id, parentId } = deepCopy
result.push({ id, isVisited: true, parentId });
if( tree[i].children ){
handleTree(tree[i].children, count+1 )
}else{
//Completed start reading backward
// const getPreviousParent = findParentDetails(tree[i].parentId )

}
})
}
}



How to approach this problem?
So far I have been able to read the data in the same direction but, getting some unexpected results while going backward.


I tried using this code but backtrace I am not getting accurate results.
const handleTree = (tree, path = [], visited = new Set() ) => {
let result = [];
let count = 0;
let visitTree = tree
if( tree && tree.length > 0 ){
const tree2 = (tree) => {
if (tree) {

tree.forEach((t, i) => {
count += 1;
let { children, id, parentId, index, ...rest } = t
result.push({ ...t, id, parentId, isVisited: true, sid: count });
tree = updateIsVisited( tree, id, parentId )
path?.push( t.id );
if (t.children) {
tree2(t.children.sort( ( a: any, b: any ) => b.order - a.order ) );
} else {

tree = updateIsVisited( tree, id, parentId )
path.pop();
const res = returnReverseNodesForTraversel( [...path], tree, t.id );
// Here data is not coming correctly
}
});
}
}
return tree2(tree)
}
};



Function For updating status
const updateIsVisited = ( nodesData, id ) => {

return nodesData.map ( ( node: any ) => {
const updatedNode = {
...node,
isVisited: node.id === id ? true : node.isVisited,
children: Array.isArray( node.children )
? updateIsVisitedInNestedObjects( node.children, id )
: []
}
return updatedNode;
})
}



I hope I have explained the question well and it is making sense. Suggestions are welcomed.
  • Share This:  
  •  Facebook
  •  Twitter
  •  Google+
  •  Stumble
  •  Digg
Email ThisBlogThis!Share to XShare to Facebook
Newer Post Older Post Home

0 comments:

Post a Comment

Thanks

Meta

Popular Posts

  • Laravel auth check login
          <?php     Laravel auth check login     use Illuminate\Support\Facades\ Auth ;     if ( Auth :: check()) {         // The use...
  • JqueryUI Tutorial
    JqueryUI Tutorial    JqueryUI is the most popular front end frameworks currently. It is sleek, intuitive, and powerful mobile first fr...
  • window.location.replace() is not working
    just wanna ask why does window.location.replace is not working in my page. I've been working on it for weeks. It works fine on my other ...
  • Comments in PHP in Hindi
    PHP में comments programmer को code समझने के लिए दिया जाता है | ये Comment lines server द्वारा read नहीं की जाती | PHP में दो प्रकार से comm...
  • Inertia and React or Vue
    Hi just checking your thoughts on whether to learn React or Vue, I want to learn React as it may be better to find work and it has a larger ...

Categories

  • Ajax (26)
  • Bootstrap (30)
  • DBMS (42)
  • HTML (12)
  • HTML5 (45)
  • JavaScript (10)
  • Jquery (34)
  • Jquery UI (2)
  • JqueryUI (32)
  • Laravel (1017)
  • Laravel Tutorials (23)
  • Laravel-Question (6)
  • Magento (9)
  • Magento 2 (95)
  • MariaDB (1)
  • MySql Tutorial (2)
  • PHP-Interview-Questions (3)
  • Php Question (13)
  • Python (36)
  • RDBMS (13)
  • SQL Tutorial (79)
  • Vue.js Tutorial (69)
  • Wordpress (150)
  • Wordpress Theme (3)
  • codeigniter (108)
  • oops (4)
  • php (853)

Social Media Links

  • Follow on Twitter
  • Like on Facebook
  • Subscribe on Youtube
  • Follow on Instagram

Pages

  • Home
  • Contact Us
  • Privacy Policy
  • About us

Blog Archive

  • July (4)
  • September (100)
  • August (50)
  • July (56)
  • June (46)
  • May (59)
  • April (50)
  • March (60)
  • February (42)
  • January (53)
  • December (58)
  • November (61)
  • October (39)
  • September (36)
  • August (36)
  • July (34)
  • June (34)
  • May (36)
  • April (29)
  • March (82)
  • February (1)
  • January (8)
  • December (14)
  • November (41)
  • October (13)
  • September (5)
  • August (48)
  • July (9)
  • June (6)
  • May (119)
  • April (259)
  • March (122)
  • February (368)
  • January (33)
  • October (2)
  • July (11)
  • June (29)
  • May (25)
  • April (168)
  • March (93)
  • February (60)
  • January (28)
  • December (195)
  • November (24)
  • October (40)
  • September (55)
  • August (6)
  • July (48)
  • May (2)
  • January (2)
  • July (6)
  • June (6)
  • February (17)
  • January (69)
  • December (122)
  • November (56)
  • October (92)
  • September (76)
  • August (6)

Loading...

Laravel News

Loading...

Copyright © CoderFunda | Powered by Blogger
Design by Coderfunda | Blogger Theme by Coderfunda | Distributed By Coderfunda