7 ms·

4Clojure hits 100K solved problems.

75 points by dreamux 15y ago

Rayne 15y ago
You can see the current count in real-time on the front page of the website. Exciting stuff!
kruhft 15y ago
Sites like this are the best way to learn any language. Keep up the good work, and I might start learning me some clojure soon enough.
lucian1900 15y ago
Great website. I started with "The Little Schemer" and SICP, and then also started learning Clojure in parallel with just the cheatsheet and 4cloure.
SatvikBeri 15y ago
I feel oddly proud of my .1% contribution to this count. 4clojure has been really useful, thanks to everyone who's had a hand in creating it!
fionabunny 15y ago
I love sites like these! I wish there was one for every language and every learning subject.
- tobij 15y ago
  Take a look at http://projecteuler.net/problems http://projecteuler.net/problems It's a wonderful collection of non language specific mathematical and/or computer programming problems.
  - weaksauce 15y ago
    Python challenge is interesting too, but not a good intro to the language. http://www.pythonchallenge.com/ http://www.pythonchallenge.com/ upon a cursory look I couldn't find a decent version for ruby, but there are many out there that do it differently.
ww520 15y ago
The site is pretty fast. It states it's hosted by Clojure. I wonder what's the architecture layout is.
- jvc26 15y ago
  Whilst it doesn't tell you about the stack it's running on, the site code is open source: https://github.com/4clojure/4clojure https://github.com/4clojure/4clojure
  - pangram 15y ago
    Looks like mongodb + compojure + some other interesting libraries (clojail for protected eval, for example), running on a Linode.
    - Rayne 15y ago
      This is correct. It is worth noting that our setup is hardly complex or clever.
vosper 15y ago
I have been enjoying 4clojure, although I found myself hitting a wall a few times, mostly due to not knowing about some function that I needed to solve the problem. It'd be great if there were hints available without looking at a completed solution - eg "try using 'reduce'". Also, I have enjoyed the Clojure koans as well: https://github.com/functional-koans/clojure-koans https://github.com/functional-koans/clojure-koans
- dreamux 15y ago
  Stop by #4clojure on freenode, the site devs hang out there (myself included) and happily give pointers on problems. Also, the main #clojure channel, while busy, is a great resource -- Clojure has a pretty welcoming community.
  - parfe 15y ago
    A link on the "Solutions" page to the next problem would streamline things some. I followed the top solvers so I could see how far off my solution ended up. Once you solve a problem you get a link to the solutions, but if you hit "Back" you end up back on the problem anew, with no link to move on. Takes some tab management to keep the "next problem" link and see the other solutions.
- freehunter 15y ago
  I've never programmed in Clojure or Java before, I figured I'd give it a try. I got hung up on a very early, and with no way to see the solution I'm stuck googling (to no avail) and trying random things (waste of time). Why can we not see the answers? Is this a standardized test or a learning tool? I'd feel silly going to a IRC channel to ask the devs what the answer to intro to strings was.
  - vosper 15y ago
    If you choose to "follow" some of the people who've completed all of the exercises you can then view their solutions. I too found this confusing early on.
- 15y ago

75 points by dreamux 15y ago

Rayne 15y ago

You can see the current count in real-time on the front page of the website. Exciting stuff!

Sites like this are the best way to learn any language. Keep up the good work, and I might start learning me some clojure soon enough.

lucian1900 15y ago

Great website. I started with "The Little Schemer" and SICP, and then also started learning Clojure in parallel with just the cheatsheet and 4cloure.

SatvikBeri 15y ago

I feel oddly proud of my .1% contribution to this count. 4clojure has been really useful, thanks to everyone who's had a hand in creating it!

fionabunny 15y ago

I love sites like these! I wish there was one for every language and every learning subject.

tobij 15y ago
Take a look at http://projecteuler.net/problems http://projecteuler.net/problems It's a wonderful collection of non language specific mathematical and/or computer programming problems.
- weaksauce 15y ago
  Python challenge is interesting too, but not a good intro to the language. http://www.pythonchallenge.com/ http://www.pythonchallenge.com/ upon a cursory look I couldn't find a decent version for ruby, but there are many out there that do it differently.

ww520 15y ago

The site is pretty fast. It states it's hosted by Clojure. I wonder what's the architecture layout is.

jvc26 15y ago
Whilst it doesn't tell you about the stack it's running on, the site code is open source: https://github.com/4clojure/4clojure https://github.com/4clojure/4clojure
- pangram 15y ago
  Looks like mongodb + compojure + some other interesting libraries (clojail for protected eval, for example), running on a Linode.
  - Rayne 15y ago
    This is correct. It is worth noting that our setup is hardly complex or clever.

vosper 15y ago

I have been enjoying 4clojure, although I found myself hitting a wall a few times, mostly due to not knowing about some function that I needed to solve the problem. It'd be great if there were hints available without looking at a completed solution - eg "try using 'reduce'". Also, I have enjoyed the Clojure koans as well: https://github.com/functional-koans/clojure-koans https://github.com/functional-koans/clojure-koans

dreamux 15y ago
Stop by #4clojure on freenode, the site devs hang out there (myself included) and happily give pointers on problems. Also, the main #clojure channel, while busy, is a great resource -- Clojure has a pretty welcoming community.
- parfe 15y ago
  A link on the "Solutions" page to the next problem would streamline things some. I followed the top solvers so I could see how far off my solution ended up. Once you solve a problem you get a link to the solutions, but if you hit "Back" you end up back on the problem anew, with no link to move on. Takes some tab management to keep the "next problem" link and see the other solutions.
freehunter 15y ago
I've never programmed in Clojure or Java before, I figured I'd give it a try. I got hung up on a very early, and with no way to see the solution I'm stuck googling (to no avail) and trying random things (waste of time). Why can we not see the answers? Is this a standardized test or a learning tool? I'd feel silly going to a IRC channel to ask the devs what the answer to intro to strings was.
- vosper 15y ago
  If you choose to "follow" some of the people who've completed all of the exercises you can then view their solutions. I too found this confusing early on.
15y ago