Backend>Blogs/Talks

Phantom Types in Gleam

CommunityNews

CommunityNews

Phantom Types in Gleam

In this post we’re going to be looking at a more advanced use of Gleam’s type system, known as phantom types. Hopefully by the end of this you’ll have another tool in your belt to help you better model data in your programs. And fear not, because many languages support phantom types (most common functional programming languages support them, but so do others like Rust, and TypeScript, and even PHP) so you can apply this knowledge elsewhere!

Before we get stuck into some examples, let’s tackle the obvious question…

https://blog.pd-andy.dev/phantom-types-in-gleam

This thread was posted by one of our members via one of our news source trackers.

View thread on forum
/gleam#types
0 1579 0

Where Next?

View thread on forum
gleam
types
Home Backend>Blogs/Talks
/gleam#types
0 1579 0
Last post

Popular Backend topics Top

Scorpil
Backend>Blogs/Talks

Things Elixir's Phoenix Framework Does Right
I dabbled in Phoenix for a while now, but never really got my hands dirty with it right up until now. Apart from the whole framework bein...
scorpil.com
/elixir/phoenix
17 1525 4
New
DevotionGeo
Backend>Blogs/Talks

Formatting your Erlang code in Visual Studio Code
There are 3 main formatters for Erlang which you can use from the command-line, rebar3_format, Steamroller elmfmt. Visual Studio Cod...
marketplace.visualstudio.com
/erlang/vscode#visual-studio-code
10 2441 3
New
AstonJ
Backend>Blogs/Talks

The Erlang Rationale, by Robert Virding (PDF)
This article was written by @rvirding …over a decade ago! Posting here in case anyone else finds it of interest and adding it to our Erla...
drive.google.com
/erlang#sticky#info
7 1717 2
New
First poster: bot
Backend>Blogs/Talks

Introduction to Postgrest
Part 1: Introduction to Postgrest. In Codd, we trust In the field of Computer Science and Engineering, few things come close to the dura...
samkhawase.com
#postgres
11 1820 5
New
First poster: bot
Backend>Blogs/Talks

How to use Lua for flexible configurations in Erlang and Elixir
When I need to configure something in a complicated way, I find myself reviewing the embedded language that provided the server to create...
erlang-solutions.com
/elixir/erlang/lua
1 1506 0
New
First poster: bot
Backend>Blogs/Talks

The Race to Replace C & C++
The Race to Replace C & C++. Three expert compiler writers sit down to discuss moving beyond C and C++ This thread...
media.handmade-seattle.com
/c-plus-plus/zig
0 1524 0
New
First poster: bot
Backend>Blogs/Talks

I finally escaped Node (and you can too)
Creation vs. Evolution Consider the history of Elixir: first you take Erlang, which was invented by Joe Armstrong and team to solve the ...
acco.io
/elixir/nodejs
1 1439 0
New
CommunityNews
Backend>Blogs/Talks

Functional Programming in Go with Generics
Functional programming is an increasing popular programming paradigm with many languages building or already supporting it. Go already su...
ani.dev
/go#programming
4 1625 1
New
AstonJ
Backend>Blogs/Talks

This is the Future of Webdev. Crazy, Right?
This was posted on the Elixir Forum and thought it was worth sharing here! I love how the excitement of the author shines through and I ...
suzdalnitski.medium.com
#elixr
12 1328 4
New
penelopa
Backend>Blogs/Talks

How to Set Up a Free RTMP Server in 2025?
Learn how set up an RTMP server for free using the open-source Red5 software. This tutorial covers all steps from downloading the code fr...
red5.net
#opensource#red5#live-streaming
1 1213 0
New

Other popular topics Top

Devtalk
General Dev>Dev Chat

HELLO WORLD (Introductions thread!)
Hello Devtalk World! Please let us know a little about who you are and where you’re from :nerd_face:
#community
482 7161 117
New
PragmaticBookshelf
General Dev>Learning Resources

The Pragmatic Programmer, 20th Anniversary Edition
Andy and Dave wrote this influential, classic book to help their clients create better software and rediscover the joy of coding. Almost ...
pragprog.com
#pragprog#published-book/book-the-pragmatic-programmer-20th-anniversary-edition
4 4782 0
New
Exadra37
General Dev>Hardware

What monitor(s) do you have for programming?
Please tell us what is your preferred monitor setup for programming(not gaming) and why you have chosen it. Does your monitor have eye p...
#monitors#coding#programming#development
227 11362 88
New
PragmaticBookshelf
Frontend>Learning Resources

Modern CSS with Tailwind
Tailwind CSS is an exciting new CSS framework that allows you to design your site by composing simple utility classes to create complex e...
pragprog.com
#pragprog/tailwind#published-book/book-modern-css-with-tailwind
12 5813 4
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Jamis Buck (Author) Interview and AMA!
Author Spotlight Jamis Buck @jamis This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
#author-spotlight/ruby/book-the-ray-tracer-challenge/book-mazes-for-programmers
21 6352 9
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Mike Riley (Author) Interview and AMA!
Author Spotlight Mike Riley @mriley This month, we turn the spotlight on Mike Riley, author of Portable Python Projects. Mike’s book ...
#author-spotlight/python#iot/book-portable-python-projects#internet-of-things
62 7035 19
New
First poster: CommunityNews
AI>In The News

How to fix the eyes in AI-generated images
aidemos.info
0 4508 0
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: VM Brasseur (Author) Interview and AMA!
Author Spotlight: VM Brasseur @vmbrasseur We have a treat for you today! We turn the spotlight onto Open Source as we sit down with V...
#author-spotlight/book-forge-your-future-with-open-source
16 5051 11
New
PragmaticBookshelf
General Dev>Learning Resources

A Common-Sense Guide to Data Structures and Algorithms in Python, Volume 1
Big O Notation can make your code faster by orders of magnitude. Get the hands-on info you need to master data structures and algorithms ...
pragprog.com
#pragprog/python#published-book/book-a-common-sense-guide-to-data-structures-and-algorithms-in-python-volume-1
24 5988 11
New
mindriot
General Dev>Reviews

Keyboard Review: UHK60V2 vs Defy vs Voyager vs Glove80 vs Svalboard
Ok, well here are some thoughts and opinions on some of the ergonomic keyboards I have, I guess like mini review of each that I use enoug...
/keyboards#uhk60v2#defy#voyager#glove80#svalboard
5 5681 7
New
Back to top

Sponsor Spotlight

WyewWorks

Enabling companies to succeed by building software people love.

Latest in Gleam

Gleam Portal ❯

Backend>Blogs/Talks

Backend Blogs/Talks ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

coders51

We build reliable cloud platforms for business-critical systems.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

Linux New Media

Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap