I am trying to call recursively another function "cityname()" with switch case#1 and I am getting "TypeError: cityname is not a function" the purpose is to give users option to enter the City name again and again if the user…
I'm looking at a functionality similar to p-props, p-all npm library but which recursively resolves promises const values = { a: () => Promise.resolve(1), b: [() => Promise.resolve(2)], c: { d: () => Promise.resolve(3), }, }; console.log(await resolve(values, { concurrency:…
The problem is that each child element is bound to each parent element, which is why everything is duplicated <?php $json = '[ {"id":3633,"name":"Mobile phones and accessories","left":1,"right":18,"level":1,"elements":0}, {"id":3638,"name":"Mobile phones","left":2,"right":3,"level":2,"elements":174}, {"id":21396,"name":"Tablets","left":19,"right":24,"level":1,"elements":0}, {"id":21450,"name":"Some Tablets","left":20,"right":21,"level":2,"elements":8} ]'; $data = json_decode($json, true); function buildTree($data, $level…
I have two tables. One with a parent child hierarchy and one with the details of some leaves somewhere in the paths. create table category ( category_id integer, category_name text, parent_category integer, level integer); insert into category values (1, 'cat1',…
Okay so I am trying to replicate JSON.stringify. Currently I am getting this error. Unfortunately this error is not very helpful because the message is cut short before it actually gets to what the problem is so I am quite…
For a simple object: const simpleObject = { "a": "aaa" , "b": "bbb" , }; I know how to get the key of a value: Object.keys(simpleObject).find(key => simpleObject[key] === "aaa"); However, if I have a complex object like this: const…
I want to determine the time complexity of the below code 👇 function random(a){ let i; let num=Math.floor((Math.random()*(a+1))) return num; } function fuc1(n){ let i; if(n<=0){ alert("condition false ") return 0; }else{ i=random(n-1); console.log("thisn") return fuc1(i)+fuc1(n-1-i); } } fuc1(6) I…
Given a object whose keys are projects and values are dependencies. I've been trying to assemble a nested tree structure without any represented circular dependencies (think files and folders). Here's a simple example: { 'a': ['b'], 'b': ['c'], 'c': [],…
Context I have the table "user_numbers" with the following records: id user_id number 1 3 123 2 3 666 3 4 123 4 5 666 5 6 555 I want to build query that find all user numbers and all…
I have two JPA entities with a @ManyToMany relationship, for example Student and Course, something like that: Student Entity: @ManyToMany List<Course> courses; Course Entity: @ManyToMany List<Student> students; What is the best way/pattern to implement a Spring REST controller which returns…