Codewars: Data Groups and Demos

### Link to the coursework

[Data Groups collection](https://www.codewars.com/collections/cyf-js2-slash-data-groups)

### Why are we doing this?

Choose some kata from the [Data Groups collection](https://www.codewars.com/collections/cyf-js2-slash-data-groups). Could you demo a solution at Friday demos? How would you do that? What would be interesting for others to know about your solution?

### Maximum time in hours (Tech has max 16 per week total)

1

### How to get help

- Join the #cyf-codewars Slack channel
- Read the [CYF Codewars docs](https://docs.codeyourfuture.io/leaders/running-the-course/codewars)
- Read [Codewars advice from CYFers](https://docs.codeyourfuture.io/leaders/running-the-course/codewars/codewars-advice-from-cyfers)
- Read [Codewars advice from mentors](https://docs.codeyourfuture.io/leaders/running-the-course/codewars/codewars-advice-from-mentors)

Every week you need to complete at least three kata. Spend at least 20 minutes, three times a week, on your kata workout. Remember, after 20 minutes, take a break.

### How to submit

Share a link in the form `https://codeyourfuture.github.io/Codewars-Progress-Checker/#YOUR_CODEWARS_USERNAME`.

You can obtain the link from the browser location bar after submitting your Codewars username on the [Codewars Progress Checker](https://codeyourfuture.github.io/Codewars-Progress-Checker/) page.

### How to review

Once you have completed your kata, look at the other solutions in the solutions view. Consider how many different approaches there are. What about different languages?

从链接的 Codewars Data Groups 集合开始，并查看 CYF Codewars 中关于 kata 工作流程的文档。选择 kata，为周五的演示准备一个解决方案，并提交 Codewars Progress Checker 链接；完成情况通过 kata 工作和共享的进度链接来证明。

由索引模型根据 Issue 内容生成。