shyouhei

azu

開発セットアップパターン

Dependencies

• Git
• https://github.com/github/hub
• https://github.com/motemen/ghq
• https://github.com/simonwhitaker/gibo
• https://github.com/blaix/license-generator
• https://github.com/azu/init-package-json-parcel

gakuzzzz

import enumlike.{EnumCompanionBase, EnumLike}
import scalikejdbc._

trait ScalikeJDBCEnumCompanion {
    self: EnumCompanionBase =>

  implicit def optionalTypeBinder(implicit ev: TypeBinder[EnumLikeType#ValueType]): TypeBinder[Option[A]] = ev.map(valueOf)
  implicit def typeBinder(implicit ev: TypeBinder[EnumLikeType#ValueType]): TypeBinder[A] = optionalTypeBinder(ev).map(_.get)
}

camlspotter

(*

OCaml translation of the ideas explained in http://fumieval.hatenablog.com/entry/2014/09/22/144401

To emulate the higher kinded polymorphism, the technique used explained in https://ocamllabs.github.io/higher/lightweight-higher-kinded-polymorphism.pdf

*)

module StateMonad = struct
  type ('s, 'a) m = 's -> 's * 'a

curi1119

# -*- coding: utf-8 -*-

def cmd(target, pane, remote_command)
  command = "tmux send-keys -t:#{target}.#{pane} #{remote_command} C-m"
  system command
end

def window(window_name)
  system "tmux new-window -a -n #{window_name}"
end

gakuzzzz

trait EnumLike {
  type Value
  def value: Value
}
trait StringEnumLike extends EnumLike {
  type Value = String
}

gakuzzzz

Scala の省略ルール早覚え

このルールさえ押さえておけば、読んでいるコードが省略記法を使っていてもほぼ読めるようになります。

メソッド定義

def concatAsString(a: Int, b: Int): String = {
  val a_ = a.toString();
  val b_ = b.toString();

leque

各言語のコレクション操作高階関数（メソッド、手続き）

Language
Common Lisp	mapc	mapcar	find-if	remove-if-not	reduce	reduce :from-end t	some	every
Scheme	for-each	map	find	filter	fold, fold-left	fold-right	any, exists	every, for-all
Haskell	mapM_	map	find	filter	foldl	foldr	any	all
Caml Light	do_list	map	-	-	it_list	list_it	exists	for_all
OCaml	iter	map	find	filter, find_all	fold_left	fold_right	exists	for_all
F#	iter	map	find	filter	fold	foldBack	exists	forall

furugomu

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