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Logs: freenode/#haskell

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2021-05-14 15:34:42 → ddellaco_ joins (~ddellacos@ool-44c73afa.dyn.optonline.net)
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2021-05-14 15:36:08 <guest5> I've tried that and im getting a similar error - https://paste.tomsmeding.com/CPZdAoYU
2021-05-14 15:36:59 × chris___ quits (~chris@81.96.113.213) (Remote host closed the connection)
2021-05-14 15:37:16 <guest5> it is definitely to do with the demo 2 and those variables
2021-05-14 15:37:18 <boxscape> guest5 findCityAndIndex returns an integer, but putStrLn expects a String. You can use `print` instead of `putStrLn` to print anything printable rather than just Strings
2021-05-14 15:37:37 <guest5> ahhhh
2021-05-14 15:38:19 <guest5> you're a legend my friend
2021-05-14 15:38:22 <boxscape> :)
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2021-05-14 15:55:34 <prasanth> Hi I was trying out pascals triangle in haskell and I wrote this https://paste.tomsmeding.com/8LDQz9zJ and got error, I cannot seem to understand what went wrong but if I do this https://paste.tomsmeding.com/jEzUy10N it works
2021-05-14 15:55:42 × geekosaur quits (45870322@069-135-003-034.biz.spectrum.com) (Quit: Ping timeout (120 seconds))
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2021-05-14 15:58:21 <monochrom> Perhaps it means you need parentheses after all, and "$ is for avoiding parentheses" isn't true?
2021-05-14 15:58:42 × isovector quits (~isovector@172.103.216.166.cable.tpia.cipherkey.com) (Ping timeout: 265 seconds)
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2021-05-14 15:59:12 <monochrom> You can use ":info :" and ":info $" to see operator precedence. Or ":info : $" if you don't mind all of it in one go.
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2021-05-14 16:00:36 → Rudd0 joins (~Rudd0@185.189.115.103)
2021-05-14 16:00:42 <monochrom> "buildRow n (r - 1) : show (binomial n r)" would have been perfect.
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2021-05-14 16:01:11 <monochrom> Obsession with $ would XY-problem into "buildRow n (r - 1) : (show $ binomial n r)" which is like the worst of both worlds.
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2021-05-14 16:06:43 <prasanth> I don't think that brackets are the problem, I tried some things in gchi and found something weird this works "1": ["2"]  but ["1"] : "2" this throws a similar kind of error to what I am getting
2021-05-14 16:08:01 → isovector joins (~isovector@172.103.216.166)
2021-05-14 16:08:15 <boxscape> prasanth : is used to add a single element to the beginning of a list. if you have a list of strings like ["foo", "bar"], you can use : to add an element like this: "str" : ["foo", "bar"]
2021-05-14 16:09:30 <prasanth> yeah, I changed my code accordingly and it works, thanks guys
2021-05-14 16:09:34 <boxscape> Strings are somwhat confusing here because they are lists of characters, so you can also add a single character to the beginning of a string, as in 'h' : "ello", which results in "hello". But note the difference between single and double quotes.
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2021-05-14 16:27:35 ← Uter parts (467ca176@gateway/web/cgi-irc/kiwiirc.com/ip.70.124.161.118) ()
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2021-05-14 16:36:18 <Uter> Take a genetics test to see if you are black...
2021-05-14 16:36:30 ← Uter parts (467ca176@gateway/web/cgi-irc/kiwiirc.com/ip.70.124.161.118) ()
2021-05-14 16:37:04 × ddellaco_ quits (~ddellacos@ool-44c73afa.dyn.optonline.net) (Ping timeout: 245 seconds)
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2021-05-14 16:38:15 <guest5> anyone have any idea why this code is outputting the data but instead of breaking the lines at "\n" is just printing out \n?
2021-05-14 16:38:22 <guest5> https://paste.tomsmeding.com/czvDkRaL
2021-05-14 16:38:55 <guest5> this is the output - https://paste.tomsmeding.com/GatsSjlU
2021-05-14 16:40:16 <lyxia> because print uses show which turns all nonprintable characters to escape sequences
2021-05-14 16:40:38 <lyxia> use putStrLn
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