Written this 2sums code to get efficent O(N) Time complexity algorithm for below problem unfortunately saw value at array nums got displayed in the output ,whereas the need is to get the indices to be displayed in output What change needs to be done below Your help is appreciated Regards, Carolyn Answer As @jriend00 said, do not use for(… in
Tag: data-structures
Typescript : How to group an object of named list of objects by field name
I have to manipulate data in this wonderful language which is javascript. Until there I managed to achieve what I needed on my own but I reached my limits there. It’s quite hard to explain how my data is structured so let’s make a schema. This is what I have : What I try to achieve is for each object,
Finding highest parent in a tree structure
I have a tree structure that is made out of the data below. I need a search algorithm to find the top leader when I put in anyone’s _id value, regardless of leader or child. For example, if the input is “615e8215c3055d1addc216b0” (the id of Rahman) or “61164b4bc08f86505e7dcdd8” (the id of Aaron Aziz) it should return the id of “Aaron
AVL Tree implementation: Insert function – Reference get twisted
I got the bug when adding 13 to the tree, the left and right pointer of node 10 have reference back to the root, and create cycle reference. I think it’s because I understand Javascript syntax wrong. code (open the console) Any suggestion? Answer The problem is that you don’t use the returned node reference from the recursive call of
JS Object Mapping Quesions
I’ve been trying to understanding this part of the code: at line 9. What does the “map[stack[stack.length-1]]” mean? At first I thought the map is an object, but I think you are supposed to add ” ” mark around the properties. Is map a data structure? if it is, How can I use this data structure? Answer Map is an
How to access, merge and collect array values within a nested data structure by different criteria?
I have below array of objects. As you can see, i have 2 runTypes named VEGGIES and FRUITS. Each runType will have a list of verticals to it. For e.g. VEGGIES has SPINACH, TOMATO, ONION and FRUITS has APPLE, BANANA, GRAPES In my case, i want to extract these vertical values and put them in an array. In case of
Can data structure be structured by another data structure?
I’m a little bit confused. Wikipedia says that Array is a data structure: In computer science, an array data structure, or simply an array, is a data structure consisting of a collection of elements (values or variables), each identified by at least one array index or key. Stack and queue are also data structures. Learn.js says that array can work
How does one access properties within a nested array and object data structure?
How can I access properties within a nested array and object data structure. I wish to access the data within the sub property of the object. However as you can see the sub property values do feature objects as well. So here is my code where I am using loop to access the property within this objects which would look
Print family names in a hierarchical tree structure
There is an array of data objects which have parent and child relations in it. I’d like to print the structure of the tree by level, printing only the names. If there is no parent information indicated then it is the root node. Sample input: Output: I tried using reduce to get the object structure but couldn’t get the traverse
how to filter an nested objects inside an array in javascript
I have the following nested objects in an array and i want to filter the result to return the id of a specific item. The solution i tried is returning null because of the nested objects structure i presume P.S: The structure of the data above is from the backend that iam working with. I am a beginner with javascript.