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

First poster: bot
Backend>Blogs/Talks

It’s not legacy code — it’s PHP
It’s not legacy code — it’s PHP. Vimeo has been using PHP in production for over 15 years. Find out how we keep a million lines of PHP i...
medium.com
/php#code
0 1460 0
New
First poster: bot
Backend>Blogs/Talks

Haskell is a Bad Programming Language (2020)
Such inflammatory, much wow. Unfortunately, Haskell itself agrees. Some languages naturally lend themselves towards adoption. Some don’t...
blog.shitiomatic.tech
/haskell#programming
0 1782 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: AstonJ
Backend>Blogs/Talks

What I wish I knew before building a Shopify App
They expect you to make a onepage application (SPA) The polaris design system officially only supports react Integration with the s...
ma.ttias.ch
26 1843 11
New
First poster: bot
Backend>Blogs/Talks

How safe is zig?
Like, on a scale from c to rust? issue c zig (release-safe) rust (release) out-of-bounds heap read/write none runtime runtime ...
scattered-thoughts.net
/c/rust/zig
0 2083 0
New
First poster: bot
Backend>Blogs/Talks

PHP in 2021
Once a year, I look back at the recent developments in the PHP world, and also look forward to what’s to come. And just like in 2020 and ...
stitcher.io
/php
0 1390 0
New
First poster: brennan
Backend>Blogs/Talks

Java Is Underhyped
The perspective of an ignorant computer science undergrad It’s likely that you read the title of this post and thought “what is this guy ...
jackson.sh
/java
8 1598 4
New
First poster: bot
Backend>Blogs/Talks

Zig Makes Rust Cross-compilation Just Work
This post is a spiritual successor to Loris Cro’s Go cross-compilation. The encounter During a recent stage 2 meeting Jakub Konka wanted...
actually.fyi
/rust/zig
2 1524 0
New
elbrujohalcon
Backend>Blogs/Talks

Spot the Difference
Erlang is famous for its introspecting powers. You can get a lot of information about the processes running in your nodes without any ext...
medium.com
/elixir/erlang#blog-post/gleam#efene
35 1952 6
New
tonyxrandall
Backend>Blogs/Talks

How to leverage functional programming in Kotlin to write better, cleaner code
As DoorDash transitioned from Python monolith to Kotlin microservices, our engineering team was presented with a lot of opportunities to ...
doordash.engineering
/kotlin#article#functional-programming
5 3159 1
New

Other popular topics Top

Devtalk
General Dev>Dev Chat

What dev-related stuff have you been up to?
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
#community
1052 22283 402
New
PragmaticBookshelf
Backend>Learning Resources

Distributed Services with Go
Take your Go skills to the next level by learning how to design, develop, and deploy a distributed service. Start from the bare essential...
pragprog.com
#pragprog/go#published-book/book-distributed-services-with-go
1 4310 0
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
DevotionGeo
Backend>Chat

What is the reason behind Rust’s web framework, Rocket, not performing as well as expected in the Techempower benchmarks?
I know that these benchmarks might not be the exact picture of real-world scenario, but still I expect a Rust web framework performing a ...
#web-frameworks/rust
36 7463 11
New
siddhant3030
General Dev>Dev Chat

Which vertical monitor do you use?
I’m thinking of buying a monitor that I can rotate to use as a vertical monitor? Also, I want to know if someone is using it for program...
#monitors#programming
51 4892 20
New
AstonJ
General Dev>Hardware

Custom keyboard keycaps
There’s a whole world of custom keycaps out there that I didn’t know existed! Check out all of our Keycaps threads here: https://forum....
#hardware/keyboards#keycaps#mechanical-keyboards
15 11086 19
New
AstonJ
General Dev>Hardware

BIIP MT3 Extended 2048 Custom Keycap Set (Drop)
This looks like a stunning keycap set :orange_heart: A LEGENDARY KEYBOARD LIVES ON When you bought an Apple Macintosh computer in the e...
/keyboards#apple#keycaps#mechanical-keyboards
14 6713 7
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Rebecca Skinner (Author) Interview and AMA!
Author Spotlight Rebecca Skinner @RebeccaSkinner Welcome to our latest author spotlight, where we sit down with Rebecca Skinner, auth...
#author-spotlight/haskell/book-effective-haskell
106 11719 28
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Peter Ullrich (Author) Interview and AMA!
Author Spotlight: Peter Ullrich @PJUllrich Data is at the core of every business, but it is useless if nobody can access and analyze ...
/elixir/phoenix/book-building-table-views-with-phoenix-liveview
72 4765 21
New
xiji2646-netizen
AI>Chat

Claude Code's entire source just leaked (512K lines) - anyone else digging through it?
Woke up to this today: Claude Code’s complete source code exposed via npm source map. Not a snippet. All 512,000 lines. 1,900 TypeScript ...
#claude
1 5903 4
New
Back to top

Sponsor Spotlight

Honeybadger

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

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