| | Presentation | | ---- | ------------- | --------------------- | | ◻️ | Functor, Apply, Applicative, Bind and Monad by Oliver Daff | | ◻️ | Functional Programming Fundamentals by Dr. Erik Meijer, parts: 1, 2, 3, 4, 5, 6, 7,8, 9 | | ◻️ | Programming with algebras by Bartosz Milewski | | ◻️ | Fun with categories by Bartosz Milewski | | ◻️ | [Catego
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/ OUTRTechnologiesChallange
Created
January 10, 2015 22:24
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| /** | |
| * Given the following file, create a simple Scala programming example | |
| * that would parse and then randomly output a quote. | |
| * (http://www.coverfire.com/files/quotes.txt) | |
| */ | |
| import scala.io.Source | |
| import scala.util.Random | |
| case class QuotesForgery(quotes: List[String] = List(), val workspace: List[String] = List()) { |
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/ gist:1fdfda27931aa687710b
Last active
August 29, 2015 14:22
How to combine functionalities?
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| A: | |
| trait DoValidator { | |
| def validate(input:String): Validation = ... | |
| } | |
| trait Doer extends DoValidator { | |
| def do(input: String) = validate(input) match | |
| case Success => .... | |
| case Failuer => .... |
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/ gist:1ff12f58c475ed176bb1
Created
June 16, 2015 22:07
Remembers credentials for 1 hour (in git)
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| git config --global credential.helper 'cache --timeout=3600' |
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/ gist:39ba1d60397aa39a7757
Created
July 7, 2015 15:31
Pretty graph logs stolen from stack over flow
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| [alias] | |
| lg1 = log --graph --abbrev-commit --decorate --date=relative --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(dim white)- %an%C(reset)%C(bold yellow)%d%C(reset)' --all | |
| lg2 = log --graph --abbrev-commit --decorate --format=format:'%C(bold blue)%h%C(reset) - %C(bold cyan)%aD%C(reset) %C(bold green)(%ar)%C(reset)%C(bold yellow)%d%C(reset)%n'' %C(white)%s%C(reset) %C(dim white)- %an%C(reset)' --all | |
| lg = !"git lg1" |
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/ Scala and Emacs with Ensime. Guide for frustrated IDEA users.md
Last active
June 13, 2018 08:04
Scala and Emacs with Ensime. Guide for frustrated IDEA users.
Content of this gist was move to repo https://github.com/rabbitonweb/emacs_ensime_guide (for you to use and fork :) )
Everything was moved to https://github.com/rabbitonweb/papers_i_love
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/ quasar spark skipped integration tests
Last active
December 7, 2016 14:24
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| # Not Connector related | |
| flattenArrayWithUnflattened.test - never terminates | |
| caseVariations.test - see #1700 | |
| caseWithGroup.test - works only for CO, according to Emrys "Nightmarish QScript (just enormous)" | |
| doubleFlattenWithIntervening - same as marklogic "doesn't preserve the fact that the first element doesn't have the req field, so missing NA in result" | |
| null/nullTestExprs - same as marklogic, JVM OOM error | |
| null/nullTestExprsWithMissing - same as marklogic, JVM OOM error | |
| symmetricNonJsJoinCondition - same as marklogic, QScript never finishes | |
| temporal/datePartsConverted.test - never terminates |
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/ rs.scala
Created
February 15, 2017 13:29
Very simple ¬ generic implementation of cata, ana & hylo for Fix
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| package rss | |
| import scalaz._, Scalaz._ | |
| case class Fix[F[_]](unfix: F[Fix[F]]) | |
| object Fix { | |
| type Algebra[F[_], A] = F[A] => A |
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/ implementing_free.scala
Created
February 21, 2017 11:58
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| import scalaz.{Free => _, _}, Scalaz._ | |
| object Attempt1 { | |
| sealed trait Free[S[_], A] | |
| case class Done[S[_], A](a: A) extends Free[S, A] | |
| case class Roll[S[_], A](k: S[Free[S, A]]) extends Free[S, A] | |
| object Free { |
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