Learn Teach Code, Code Challenges

Repository for problems and collected solutions for the Learn Teach Code #code-challenge slack channel.

Join the Learn Teach Code Slack #code-challenge channel to get started. Check out the Meetup page too.

How to post a solution

Post your solution in a way that doesn’t spoil for others. Options:

(Preferred) As a slack code snippet with 5 blank lines in header (Slack folds these automatically)
As a gist/codepen/repl.it/external link
As a pull request into the solutions directory of this repo

Use any language. Part of the fun is seeing different implementations. But if you want guidance, the community is javascript-oriented, so you might start there.
We welcome people at all levels of skill. The challenges are designed to be doable for beginners within reasonable time, and we want you to participate. The only criterion is time to attempt a solution.
The challenges are designed to be flexible enough for beginner and experienced programmers alike to have something to chew on. Sharing lots of different approaches and weighing alternatives is the whole point.
Healthy discussion of solutions is encouraged. Of course, be respectful. People are sharing their work.
Ask questions! We aren’t trying to be tricky, and a benefit of doing challenges in this venue is that we can talk things through. If the prompt isn’t clear, or if you need a push in the right direction, feel free to ask. If you get stuck, post a partial solution and ask for help.
Try a solution in the bare language first. If the language already implements an identical function, do it by hand. But then: production versions are also welcome, including use of standard library facilities and popular libraries. For instance, if in real life you would use one or two lodash functions in js, or pandas in python, that’s an interesting angle to share.

> current challenge

The contents of this repository are licensed under the Creative Commons Attribution + Share-alike license