
juhp
Effective Haskell: ch1 summary says "next types" (page 44)
The summary section in chapter 1 (B9.0) ends with:
“In the next chapter you’ll learn about Haskell’s type system and what a function does based on its type signature.”
Surely that’s chapter 3, not the next chapter?
First Post!

RebeccaSkinner
Author of Effective Haskell
Another good catch- I’ll add an errata about this. Thanks!
Popular Pragmatic Bookshelf topics

On the page xv there is an instruction to run bin/setup from the main folder. I downloaded the source code today (12/03/21) and can’t see...
New

The generated iex result below should list products instead of product for the metadata. (page 67)
iex> product = %Product{}
%Pento....
New

This isn’t directly about the book contents so maybe not the right forum…but in some of the code apps (e.g. turbo/06) it sends a TURBO_ST...
New

Title: Intuitive Python: docker run… denied error (page 2)
Attempted to run the docker command in both CLI and Powershell
PS C:\Users\r...
New

Running mix deps.get in the sensor_hub directory fails with the following error:
** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
New

I’m running Android Studio “Arctic Fox” 2020.3.1 Patch 2, and I’m embarrassed to admit that I only made it to page 8 before running into ...
New

When installing Cards as an editable package, I get the following error:
ERROR: File “setup.py” not found. Directory cannot be installe...
New

When running tox for the first time, I got the following error:
ERROR: InterpreterNotFound: python3.10
I realised that I was running ...
New

The allprojects block listed on page 245 produces the following error when syncing gradle:
“org.gradle.api.GradleScriptException: A prob...
New

I am using Android Studio Chipmunk | 2021.2.1 Patch 2
Build #AI-212.5712.43.2112.8815526, built on July 10, 2022
Runtime version: 11.0....
New
Other popular topics

Reading something? Working on something? Planning something? Changing jobs even!?
If you’re up for sharing, please let us know what you’...
New

A thread that every forum needs!
Simply post a link to a track on YouTube (or SoundCloud or Vimeo amongst others!) on a separate line an...
New

Which, if any, games do you play? On what platform?
I just bought (and completed) Minecraft Dungeons for my Nintendo Switch. Other than ...
New

I’ve been really enjoying obsidian.md:
It is very snappy (even though it is based on Electron). I love that it is all local by defaul...
New

Curious to know which languages and frameworks you’re all thinking about learning next :upside_down_face:
Perhaps if there’s enough peop...
New

You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...
New

I have seen the keycaps I want - they are due for a group-buy this week but won’t be delivered until October next year!!! :rofl:
The Ser...
New

Seems like a lot of people caught it - just wondered whether any of you did?
As far as I know I didn’t, but it wouldn’t surprise me if I...
New

Hi folks,
I don’t know if I saw this here but, here’s a new programming language, called Roc
Reminds me a bit of Elm and thus Haskell. ...
New

This is cool!
DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON
We just witnessed something incredible: the largest open-s...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /ruby
- /wasm
- /erlang
- /phoenix
- /keyboards
- /rails
- /js
- /python
- /security
- /go
- /swift
- /vim
- /clojure
- /emacs
- /java
- /haskell
- /onivim
- /svelte
- /typescript
- /crystal
- /c-plus-plus
- /kotlin
- /tailwind
- /gleam
- /ocaml
- /react
- /elm
- /flutter
- /vscode
- /ash
- /opensuse
- /centos
- /php
- /deepseek
- /html
- /scala
- /zig
- /textmate
- /sublime-text
- /debian
- /nixos
- /lisp
- /agda
- /react-native
- /kubuntu
- /arch-linux
- /revery
- /ubuntu
- /spring
- /manjaro
- /django
- /diversity
- /nodejs
- /lua
- /c
- /slackware
- /julia
- /neovim