Ruby style guide VS crystal

By default, RuboCop will enforce the style defined in the Ruby Community Style Guide. We can tailor it to our specific tastes and context, but let's rely on this basic set of rules to learn how to use RuboCop.

RuboCop is a Ruby static code analyzer (a.k.a. linter) and code formatter. Out of the box it will enforce many of the guidelines outlined in the community Ruby Style Guide. Apart from reporting the problems discovered in your code, RuboCop can also automatically fix many of them for you.

Read more about Ruby.

8. Use a consistent style: Consistency is key when it comes to writing readable code. Use a consistent style throughout your codebase, and follow common Ruby style guides like Ruby Style Guide.

The real standard is to use default rubocop configuration which is based on https://rubystyle.guide/.

It used to, before recently. It literally said, "The and and or keywords are banned."

rubocop/ruby-style-guide

As you see - there are no reference to any technology or framework. There are a lot of best-practices for almost any framework, so you can choose an appropriate one. For example - if you're a rails developer, then you can check https://github.com/rubocop/ruby-style-guide and https://github.com/rubocop/rails-style-guide but if you're a golang developer - https://github.com/uber-go/guide/blob/master/style.md and https://developers.mattermost.com/contribute/more-info/server/style-guide/

27. Crystal - $77,104

I like the first code example on https://crystal-lang.org

    # A very basic HTTP server

Obviously as an interpreted language, it's never going to be as fast as something like C, Rust, or Go. Traditionally the ruby maintainers have not designed or optimized for pure speed, but that is changing, and the language is definitely faster these days compared to a decade ago.

If you like the ruby syntax/language but want the speed of a compiled language, it's also worth checking out Crystal[^1]. It's mostly ruby-like in syntax, style, and developer ergonomics.[^2] Although it's an entirely different language. Also a tiny community.

[1]: https://crystal-lang.org/

Crystal is a nice language that's not only simple to read and write but performs very well too. And the documentation is amazing as well.

Ruby is a super fun scripting language. I much prefer it to python when I need something with a little more "ooomph" than bash. It's just...nice...to write in. Ruby performance has come a long way in the last decade as well. There's libraries for pretty much everything.

My modern programming toolkit is basically golang + ruby + bash and I am never left wanting.

I do find Crystal (https://crystal-lang.org/) really interesting and am hoping it has its own "ruby on rails" moment that helps the language reach a tipping point in popularity. All the beauty of ruby with all of the speed of Go (and then some, it often compares favorably to languages like rust in benchmarks).