I wrote the following recursive JS function that takes a single parameter node which is made of other nodes and modifies it by adding to each node its number of leaves (not only direct children) : Here’s an example of the node parameter : addWidth(object) would modify it and turn it into : I need help to make my function
Tag: recursion
Recursive function returns weird output?
So i have this problem where i need to fill a list with objects of children’s ids,names and parents ids and names for further backend work. When i select a child and I recursively fill the list it gives me this output I use this function to fill the list The function expects a node with parent nodes which in
How to convert flat data structure to tree structure in JavaScript using recursion
I want to create a tree from the data provided using recursion. I am also trying to get the tree to pass an npm test, but when I run the test, it is failing. I am getting a tree, but it looks different than the one it is supposed to look like. Here is the code (with instructions in a
How to create a el-table-tree structure with dynamic json data using javascript?
I have a task in which I need to convert an Array of Objects data to specified data tree structure for to display it in frontend tree-table. This below is my Array of Objects data. I have to change this data into this below following data structure. I have tried to do this using Recursion in methods but, I can’t
How can i recursively group children objects under parent in an array of objects in JavaScript?
I have an array of topics each linked to a parent topic. So, basically what I want to do is form an array with all the children topics nested under the parent. So if I had an table of topics looking like this: id name parent_id 1 Topic 1 null 2 Topic 2 1 3 Topic 3 2 4 Topic
Faster ‘ find & reorder’ logic in javascript
I am reordering the nodes in a certain level for a tree structure using the following recursive function. Reorder using the sort is not taking time, however recursively finding the parent node is taking time. how can I make this faster? tree data reorderedObject If i have 4 level depth and 50 items in each level, it takes 10 sec
Javascript recursion function including variables
I am trying to write a function where the function returns a sub-array of the name and age key/value pairs in the objects in an array. I am to use recursion to achieve it, however I can’t find a solution that doesn’t involve keeping the num and arr2 variables outside of the function (as when they are inside they default
How can I convert HTML to Object structure with text and formatting?
I need to convert a HTML String with nested Tags like this one: Into the following Array of objects with this Structure: I managed the conversion with the DOMParser() as long as there are no nested Tags. I am not able to get it running with nested Tags, like in the last paragraph, so my whole paragraph is bold, but
How to entirely level (map / reduce / recursion) a nested object of unknown depth in the most efficient manner?
I would like to do something like the following but in a more large scale and efficient way. Assume I have an array of objects where each object needs to be leveled/flattened. Convert something like this … … to that … As is shown above, address as well is an object which needs to be leveled/flattened. But most importantly, one
How to add a property to every object in a nested JSON structure in JavaScript?
Let’s suppose I have an API response that looks like this: I want to transform it by adding the rid property to each object. How can I do so? I think there is some kind of recursion involved but I haven’t been able to draft a solution? Thanks. Answer You just need to iterate through object with recursive function. Try