All Questions
63 questions
2votes
0answers
733views
Determine whether there exists a one-to-one character mapping from one string to another
The task Determine whether there exists a one-to-one character mapping from one string s1 to another s2. For example, given s1 = abc and s2 = bcd, return true since we can map a to b, b to c, and c ...
- 29k
4votes
2answers
192views
Abundant number implementation
I have implementted a simple JavaScript function to find the list of abundant numbers and print them on the screen. an abundant number is a number for which the sum of its proper divisors is greater ...
- 84.9k
4votes
2answers
3kviews
Download entire localStorage as file
I would like to download the entire contents from localStorage to a json file (in a "clear" formatting). I've tried this and it works perfectly. However, ...
CommunityBot
- 1
1vote
1answer
140views
Transform an array into object and set index for an unique key in javascript
I have a method that merges keys and indexes from an array into an object. I'm stuck with ways to compress this method, and I don't know what I can do to make it simpler. Goal get an array of objects ...
- 29k
2votes
1answer
2kviews
Find common characters (LeetCode)
The task is taken from leetcode Given an array A of strings made only from lowercase letters, return a list of all characters that show up in all strings within the list (including duplicates). ...
- 101
0votes
2answers
84views
Processing list of users- filtering out from refused list
The code below takes a list of users and displays two lists Refused users Admitted users Sample output: Refuse: Phil, Lola. Admit: Chris, Anne, Colin, Terri, Sam, Kay, Bruce. Any feedback is ...
- 34k
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: ...
-2votes
2answers
111views
1vote
1answer
1kviews
Find busiest period in building
The task You are given a list of data entries that represent entries and exits of groups of people into a building. An entry looks like this: {"timestamp": 1526579928, count: 3, "type": "...
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: ...
- 22.7k
4votes
2answers
4kviews
Return the first word with the greatest number of repeated letters
I'm learning JavaScript and have written a function that accepts a string and returns the first word with the greatest number of repeated letters. For example: Input:"Hello apple pie" - Output:"Hello"...
- 1,560
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 ...
- 29k
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 ...
- 29k
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 ...
- 29k
