All Questions
63 questions
13votes
5answers
3kviews
11votes
4answers
3kviews
Restructuring JSON to create a new JSON where properties are grouped according to similar values
I have a JSON structure in the following example format: ...
11votes
1answer
228views
Hunt the wumpus: Functional JavaScript (Node) with Lodash
I'd like a code review of the following simple implementation of the classic game Hunt the Wumpus I'm trying to use JavaScript in the most "functional" way. To help me, I'm using lodash and ES6. <...
- 211
10votes
2answers
696views
Array duplicate removal for duplicates exceeding `N`-number
I recently encountered a front-end interview coding challenge question that required one to create a function which returned an array that excluded numbers that occurred more than ...
- 103
8votes
2answers
188views
Functional way to have two toggles that turn each other off
I have two sets of toggles that need to "uncheck" each other. This is my current solution which is working. Can it somehow get more functional/elegant? ...
- 83
8votes
1answer
2kviews
Merge Intervals in JavaScript
This is a task taken from Leetcode - Given a collection of intervals, merge all overlapping intervals. Example 1: ...
- 3,981
7votes
3answers
1kviews
Counting words from stored .md files
The following searches recursively for all the mark down files - i. ending with the extension .md - inside a folder. It then stores the text of the files in an ...
- 555
7votes
1answer
4kviews
Given a string containing just parentheses, determine if the input string is valid
The task is taken from leetcode Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: ...
- 3,981
6votes
4answers
3kviews
Convert minutes portion of time to decimal
I am making an hours calculator app. It takes a start time, end time and time taken for lunch. For the start and end time it takes a four-digit hh:mm time. For example: 10:20. I have made a function ...
6votes
4answers
3kviews
Find all letter Combinations of a Phone Number
The task is taken from LeetCode Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. A mapping of digit to letters (just ...
- 3,981
6votes
2answers
3kviews
Use functional-programming to convert a tree of parent:children objects to array
Having some trouble with a code I'm trying to refactor, where I need to go over a 'tree' of items, filter some invalid items, and create a new array of filtered items which takes properties from both ...
- 185
6votes
2answers
136views
Reformatting a structured string like "a-b-c|A-B-C" into "a-A|b-B|c-C"
The code below was inspired by this post in Code Review. Here is how it was first intended by its author: I have the following code that converts a string that looks like : aaa-bbb|ccc-ddd|eee-fff ...
- 2,821
5votes
1answer
1kviews
Program for calculating and ranking scores
I've recently completed a vanilla JS challenge . It is a method for calculating and ranking scores. If possible, I would love to make it better. Any suggestions are welcome. Challenge Directions: The ...
5votes
1answer
119views
Advent Of Code 2017 Day 4 (part 2) in Functional Programming (FP)
I wanted to practice functional programming (FP) without using any library but using vanilla JavaScript only. So I took a problem from Advent of Code (the 2nd part of Day 4) You can only access the ...
- 3,981
5votes
3answers
112views
Aggregate summary counts for an array of error objects
I'm doing some refactoring of someone else's code, and just want a second opinion, because of course I think my work makes it better, but some validation (or correction) would be helpful. Starting ...
- 151
