Backend>Blogs/Talks

A Subtle Elixir Gotcha: Pattern Matching with Floats

blackode

blackode

A Subtle Elixir Gotcha: Pattern Matching with Floats

Ever thought pattern matching with floats in Elixir was straightforward? We learned the hard way in production that it can be surprisingly tricky. This post dives into a real-world bug, why it happened, and how to avoid it.

https://blackode.medium.com/a-subtle-elixir-gotcha-that-bit-us-in-production-pattern-matching-with-floats-1c6a50369389?sk=e0c87477949dce239cd06428515484a2

elixir programming #PatternMatching #BugFix

View thread on forum
/elixir#blog-post#learning
0 22 0

Where Next?

View thread on forum
elixir
blog-post
learning
Home Backend>Blogs/Talks
/elixir#blog-post#learning
0 22 0
Last post

Popular Backend topics Top

First poster: bot
Backend>Blogs/Talks

Where (and how) you limit your concurrency in Go can matter
utcc.utoronto.ca
/go
0 1576 0
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

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

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

Quick Overview of Julia language [pdf]
Julia is a scientific programming language that is free and open source.1 It is a relatively new language that borrows inspiration from l...
algorithmsbook.com
/julia
0 1567 0
New
First poster: bot
Backend>Blogs/Talks

An Introduction to Crystal
One of my favourite programming languages in the last few years has been Crystal. While the language has not yet reached its 1.0 version,...
blog.oisinaylward.me
/crystal
0 1490 0
New
First poster: malloryerik
Backend>Blogs/Talks

What is the most underestimated programming language?
Everyone outside of tech has heard of JavaScript, Java, Python, Ruby and even .Net, but few if any have heard of F#. However, F# may be o...
medium.com
#f-sharp#programming
43 2291 14
New
elbrujohalcon
Backend>Blogs/Talks

How do List Functions Fail in Erlang?
A long time ago, I wrote an article about The Asymmetry of ++, thanks to Fede Bergero’s findings. Let’s add a few more asymmetries to th...
medium.com
/erlang#blog-post
17 1659 5
New
brainlid
Backend>Blogs/Talks

ThinkingElixir 092 - Temple with Mitchell Hanberg
In episode 92 of Thinking Elixir, we talk with Mitchell Hanberg and learn about why he created the alternate Phoenix templating language ...
podcast.thinkingelixir.com
/elixir#podcasts#testing#browser/html#dev-news-source
4 1327 0
New
brainlid
Backend>Blogs/Talks

Created my Personal AI Fitness Trainer in 2 Days
In a 2 day spike, I created my own Elixir-based AI Personal Fitness Trainer! The surprising part for me was how useful and helpful I foun...
fly.io
#ai/elixir#blog-post#fitness#chatgpt#workout
2 1120 0
New

Other popular topics Top

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
DevotionGeo
Backend>Chat

Would you use Erlang now when there is Elixir?
Why, if your answer is yes?
/elixir/erlang
167 4955 52
New
AstonJ
General Dev>Hardware

GMK Serika Keycaps - Serika 2 available to order now!
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...
/keyboards#keycaps#mechanical-keyboards
9 5097 7
New
PragmaticBookshelf
Backend>Learning Resources

Programming Phoenix LiveView
Build highly interactive applications without ever leaving Elixir, the way the experts do. Let LiveView take care of performance, scalabi...
pragprog.com
#pragprog/elixir/phoenix#published-book/book-programming-phoenix-liveview
79 9178 24
New
PragmaticBookshelf
Backend>Learning Resources

Python Testing with pytest, Second Edition
Create efficient, elegant software tests in pytest, Python's most powerful testing framework. Brian Okken @brianokken Edited by Kat...
pragprog.com
#pragprog/python#published-book/book-python-testing-with-pytest-second-edition
16 7461 4
New
foxtrottwist
General Dev>Dev Chat

Warp—The blazingly fast, Rust-based terminal
A few weeks ago I started using Warp a terminal written in rust. Though in it’s current state of development there are a few caveats (tab...
/rust#terminal
52 6785 22
New
PragmaticBookshelf
Backend>Learning Resources

Effective Haskell
Build efficient applications that exploit the unique benefits of a pure functional language, learning from an engineer who uses Haskell t...
pragprog.com
#pragprog/haskell#published-book/book-effective-haskell
15 10218 1
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
sir.laksmana_wenk
Game Dev>Questions

I want to learn how make a game, but where should I start?
I’m able to do the “artistic” part of game-development; character designing/modeling, music, environment modeling, etc. However, I don’t...
#game-dev
15 4965 9
New
AstonJ
AI>Chat

Post your DeepSeek results
Curious what kind of results others are getting, I think actually prefer the 7B model to the 32B model, not only is it faster but the qua...
/deepseek
15 4275 15
New
Back to top

Sponsor Spotlight

Honeybadger

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

Latest in Elixir

Elixir 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!"

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!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap