karax VS jester

The frontend uses Karax, which is my favorite frontend/SPA library. It is an absolute joy to use, even if it's a bit rough around the edges.

https://github.com/karaxnim/karax

I have used Nim for personal projects for 6 years now and it continues to surprise me on how well versed it is for many problem domains. I am fond of it's SPA framework, karax https://github.com/karaxnim/karax for which I wrote a translation utility https://github.com/nim-lang-cn/html2karax Latest Nimv2 release candidate has improved in the ergonomics and syntax that affect compilation to js, so I was able to cleanup my webapp's code to be less verbose. On GPU programming there has been a few projects that touch GPU programming, most notably https://github.com/treeform/shady

And it's present not only in Python but in other languages as well. Check for example https://github.com/karaxnim/karax - I don't know why people would want to hide all of their HTML in Python/whatever language. Then limit their ability to script and style it in one way or another.

> the real killer feature to me is the javascript target

Agree, this is amazing because you can share code and data structures between front and backend (for example: https://github.com/karaxnim/karax).

Also, it's really nice having high level stuff like metaprogramming and static typing spanning both targets. Things like reading a spec file and generating statically checked APIs for server/client is straightforward, which opens up a lot of possibilities.

E.g. Nim focuses on enabling what it calls "single page web apps": https://github.com/karaxnim/karax.

I recommend you to take a look at Karax. It's a front-end framework for Nim that can compile to regular JavaScript. If you want to know how to use it with a webserver, Joker is a good example. With the Joker config, all of the compiled .js files land in /public/views, where you can take a look at them. But keep in mind that the JS that Nim produces is often rather cumbersome and hundreds of lines long, even if it's just a simple program.

`buildHtml` is a macro, the code passed to it via it's invocation (the 'colon-delimited indented code blocks') is then transformed as explained in the readme https://github.com/karaxnim/karax#hello-world and compiled. Macros are explained in the manual https://nim-lang.github.io/Nim/manual.html#macros

The `text` function in the Karax DSL is actually escaped once it is converted to a string, see https://github.com/karaxnim/karax/blob/c71bc927494418c3f52f9... for the implementation if you are curious. There is a way to render raw HTML using `verbatim` instead of `text` in Karax.

So in this case, I believe it would be protected against XSS to some extent, but I obviously haven't done an in depth security check for a demo/simple project. There are plenty of other potential issues as well (username collisions, websocket errors, user lists) but I judged those to be out of the scope of a simple project like this.

Well no language is perfect, but Nim can be used in almost every domain because of it's compilation targets(C, C++, JS) and it's fast compile times(who needs interpretation when compile times are that fast!):

* Shell scripting, I still assume most people will just use Bash tho: https://github.com/Vindaar/shell

* Frontend: https://github.com/karaxnim/karax or you could bind to an existing JS library.

* Backend: For something Flask-like: https://github.com/dom96/jester or something with more defaults https://github.com/planety/prologue

* Scientific computing: the wonderful SciNim https://github.com/SciNim

* Blockchain: Status has some of the biggest Nim codebases currently in production https://github.com/status-im?q=&type=&language=nim&sort=

* Gamedev: Also used in production: https://github.com/pragmagic/godot-nim and due to easy C and C++ interop, you get access to a lot of gamedev libraries!

* Embedded: this is a domain I know very little about but for example https://github.com/elcritch/nesper or https://github.com/PMunch/badger for fun Nim+embedded stuff!

Most of the disadvantages come from tooling and lack of $$$ support.

I really like using Nim. It features a Python-like syntax and you can compile code to C, C++, ObjectiveC and JavaScript. If it doesn't support a certain JS feature, you can add it yourself. Due to Nim's amazing metaprogramming, you can even use it as a replacement for HTML within Karax.

How to run those benchmarks?

At that Nim release page:

https://nim-lang.org/blog/2021/10/19/version-160-released.ht...

Is link to this benchmark:

https://web-frameworks-benchmark.netlify.app/result

Where nim is 2nd with 200k req/s, but it is using httpbeast:

https://github.com/dom96/httpbeast

That says it would be more useful to use jester:

https://github.com/dom96/jester

Jester has 150k req/s.

But, when looking at these:

https://www.techempower.com/benchmarks/

dragon, actix etc has about 600k req/s .

Also redbean has about 600k req/s, when I tested:

https://redbean.dev/

I tested like this:

git clone https://github.com/wg/wrk.git

cd wrk

./wrk -H 'Accept-Encoding: gzip' -t 12 -c 120 http://127.0.0.1:8080/

When I tested https://caddyserver.com v2, it did show about 800k req/s.

It would be very helpful to know how those benchmarks are actually done, so that I could compare what is actually fastest in real world, and not just use some for benchmark tested winning non-realistic code.

Well no language is perfect, but Nim can be used in almost every domain because of it's compilation targets(C, C++, JS) and it's fast compile times(who needs interpretation when compile times are that fast!):

* Shell scripting, I still assume most people will just use Bash tho: https://github.com/Vindaar/shell

* Frontend: https://github.com/karaxnim/karax or you could bind to an existing JS library.

* Backend: For something Flask-like: https://github.com/dom96/jester or something with more defaults https://github.com/planety/prologue

* Scientific computing: the wonderful SciNim https://github.com/SciNim

* Blockchain: Status has some of the biggest Nim codebases currently in production https://github.com/status-im?q=&type=&language=nim&sort=

* Gamedev: Also used in production: https://github.com/pragmagic/godot-nim and due to easy C and C++ interop, you get access to a lot of gamedev libraries!

* Embedded: this is a domain I know very little about but for example https://github.com/elcritch/nesper or https://github.com/PMunch/badger for fun Nim+embedded stuff!

Most of the disadvantages come from tooling and lack of $$$ support.

See https://github.com/dom96/jester/blob/master/tests/alltest.nim#L105 and for a simpler syntax you can use the same @ as with params in the URL, so just: