ttesmer

{-# LANGUAGE TypeSynonymInstances #-}
data Dual d = D Float d deriving Show
type Float' = Float

diff :: (Dual Float' -> Dual Float') -> Float -> Float'
diff f x = y'
  where D y y' = f (D x 1)

class VectorSpace v where
  zero  :: v

mizchi

放送で紹介する用。書きかけです。

ちょっと伸びたのでさらに追記。これは元々自分の勉強がてら書いていたもので、これを書く過程でどうしても自分の理解では説明できないところがあり koba789 に依頼してペアプロをしてもらった、という流れがあります。その結果が次の動画です。

https://t.co/FIBmVrR83U

生放送の流れを円滑にするために資料を公開しましたが、この記事は未完成で、あとでさらに整理して別途記事にまとめるつもりです

---

sindresorhus

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

1. Use ESM yourself. (preferred)
   Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
3. Stay on the existing version of the package until you can move to ESM.

Lipranu

let pkgs = import (fetchTarball path) {};
    path = https://github.com/NixOS/nixpkgs/archive/master.tar.gz;
in with pkgs;
  mkShell {
    buildInputs = [
      haskell.compiler.ghc901
    ];
  }

sketchbuch

export enum HttpStatusCodes100 {
  CONTINUE = 100,
  SWITCHING_PROTOCOLS = 101,
  PROCESSING = 102,
  EARLY_HINTS = 103,
}

export enum HttpStatusCodes200 {
  OK = 200,
  CREATED = 201,

rlucha

module Main where

import Prelude

import Control.Monad.Reader (Reader, runReader, ReaderT(..), runReaderT, ask, class MonadAsk)
import Effect (Effect)
import Effect.Class (class MonadEffect, liftEffect)
import Effect.Console (log)

---------------------------------------------------------

vijayanant

{-# LANGUAGE RankNTypes #-}

module RankN where

-- Rank 0: 
-- add1 is momomorphic
add1 :: Int -> Int
add1 x = x + 1

-- Rank 1

edolstra

Nix Flake MVP

Goals

• To provide Nix repositories with an easy and standard way to reference other Nix repositories.

• To allow such references to be queried and updated automatically.

• To provide a replacement for nix-channel, NIX_PATH and Hydra

sile

RFC 2033: experimental coroutines

• Start Date: 2017-06-15
• RFC: https://github.com/rust-lang/rfcs/blob/master/text/2033-experimental-coroutines.md
• PR: rust-lang/rfcs#2033
• Issue: rust-lang/rust#43122

関連: RFC 2394

ellerbrock

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

1. Take the download.sh file and put it into a directory where you want the files to be saved.
2. cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
3. Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.