Code Smell 291 - Mutable Keys
Changing Keys, Losing Values
maximilianocontieri.com
February 23, 2025 at 6:33 PM
#JavaScript 💻
if (users[userName]) might log "User name found!" even for built-ins like toString 😬
Why? It checks the prototype chain 🔗
✅ Use Object.hasOwn(users, userName) to check only real keys 🔐
#CodeSmell #CleanCode #JavaScriptTips #WebDev #DevTips
if (users[userName]) might log "User name found!" even for built-ins like toString 😬
Why? It checks the prototype chain 🔗
✅ Use Object.hasOwn(users, userName) to check only real keys 🔐
#CodeSmell #CleanCode #JavaScriptTips #WebDev #DevTips
October 12, 2025 at 5:55 PM
#JavaScript 💻
if (users[userName]) might log "User name found!" even for built-ins like toString 😬
Why? It checks the prototype chain 🔗
✅ Use Object.hasOwn(users, userName) to check only real keys 🔐
#CodeSmell #CleanCode #JavaScriptTips #WebDev #DevTips
if (users[userName]) might log "User name found!" even for built-ins like toString 😬
Why? It checks the prototype chain 🔗
✅ Use Object.hasOwn(users, userName) to check only real keys 🔐
#CodeSmell #CleanCode #JavaScriptTips #WebDev #DevTips
@martinfowler.com thanks for sharing. I cite your CodeSmell page on my notes on how I use LLMs to code. Your site is probably my biggest inspiration. Thank you for publishing www.jsrowe.com/how-i-use-ll...
How I Use AI Tools Everyday: Leveraging Claude and ChatGPT
Thoughts on Intentionally Leveraging Popular Generative AI Tools
www.jsrowe.com
February 20, 2025 at 5:42 AM
@martinfowler.com thanks for sharing. I cite your CodeSmell page on my notes on how I use LLMs to code. Your site is probably my biggest inspiration. Thank you for publishing www.jsrowe.com/how-i-use-ll...
Code Smell 309 - Query Parameter API Versioning #Technology #SoftwareEngineering #Other #API #CodeSmell
Code Smell 309 - Query Parameter API Versioning
Misusing query parameters complicates API maintenance TL;DR: Use URL paths or headers for API versioning. Problems 😔 Confusing parameters High maintenance Inconsistent versioning Client errors Misused...
puretech.news
September 14, 2025 at 9:02 PM
Code Smell 309 - Query Parameter API Versioning #Technology #SoftwareEngineering #Other #API #CodeSmell
Function Properties in Data Classes are Code Smells
#codesmell #dataclass #java
marcellogalhardo.dev/po...
#codesmell #dataclass #java
marcellogalhardo.dev/po...
Function Properties in Data Classes are Code Smells
To me, using functions as properties in the primary constructor of a data class is a code smell. Here’s why:
Data classes represent data. Data is a value. Data is never executed. Functions are not data. They produce values when executed. Note: By the book, a function returns a value, while a procedure executes commands. In both cases, neither is data.
Why It Matters Kotlin generates key methods for data classes based on the properties in the primary constructor, such as:
marcellogalhardo.dev
November 29, 2024 at 8:14 PM
Function Properties in Data Classes are Code Smells
#codesmell #dataclass #java
marcellogalhardo.dev/po...
#codesmell #dataclass #java
marcellogalhardo.dev/po...
Code Smell 319 - Hardcoded Stateless Properties #Technology #SoftwareEngineering #Other hashtag 1: #CodeSmell 2: #SoftwareDevelopment 3: #ProgrammingBestPractices
https://hackernoon.com/code-smell-319-hardcoded-stateless-properties?source=rss
https://hackernoon.com/code-smell-319-hardcoded-stateless-properties?source=rss
Code Smell 319 - Hardcoded Stateless Properties | HackerNoon
You should avoid storing stateless utility classes as instance variables initialized with new.
hackernoon.com
April 12, 2026 at 10:54 PM
Code Smell 319 - Hardcoded Stateless Properties #Technology #SoftwareEngineering #Other hashtag 1: #CodeSmell 2: #SoftwareDevelopment 3: #ProgrammingBestPractices
https://hackernoon.com/code-smell-319-hardcoded-stateless-properties?source=rss
https://hackernoon.com/code-smell-319-hardcoded-stateless-properties?source=rss
I mean, he's not wrong, but also. Async reads in a local database is codesmell to me, resolving a promise *can* be fast - when resolved in the same microtask, but how would the caller know? 🤷♂️ It feels like the API is leaking an assumption of its implementation 🤔
July 5, 2026 at 8:50 PM
I mean, he's not wrong, but also. Async reads in a local database is codesmell to me, resolving a promise *can* be fast - when resolved in the same microtask, but how would the caller know? 🤷♂️ It feels like the API is leaking an assumption of its implementation 🤔
Code Smell 299 - How to Fix Overloaded Test Setups #Technology #SoftwareEngineering #Other hashtag 1: #CodeSmell 2: #SoftwareTesting 3: #DevelopmentBestPractices
Code Smell 299 - How to Fix Overloaded Test Setups
When your test setup is bigger than the actual test TL;DR: Bloated setup that's only partially used makes your tests more coupled and harder to understand. Problems 😔 Coupling Readability Wasted execution...
puretech.news
May 11, 2025 at 12:30 AM
Code Smell 299 - How to Fix Overloaded Test Setups #Technology #SoftwareEngineering #Other hashtag 1: #CodeSmell 2: #SoftwareTesting 3: #DevelopmentBestPractices
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
dotNetDave Says… Clear Naming Standards Create Clearer Code and Clearer Code Leads to Better Software
Clear naming standards in software development significantly enhance code readability, maintainability, and overall quality. Consistent naming reduces cognitive load, facilitates collaboration, and…
dotnettips.wordpress.com
September 11, 2026 at 3:36 PM
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
If you end up removing your mixins, maybe your software architecture wasn’t that solid to begin with. Mixins aren’t a default design pattern in Python. They’re often a design smell. Composition usually tells a clearer story. #codesmell #RSE #OOP
October 17, 2025 at 12:27 PM
If you end up removing your mixins, maybe your software architecture wasn’t that solid to begin with. Mixins aren’t a default design pattern in Python. They’re often a design smell. Composition usually tells a clearer story. #codesmell #RSE #OOP
Technical Debt Collector
#Compilerwarnings #Technicaldebt #Codequality #Developerhumor #Codesmell
https://programmerhumor.io/programming-memes/technical-debt-collector-z7dh
#Compilerwarnings #Technicaldebt #Codequality #Developerhumor #Codesmell
https://programmerhumor.io/programming-memes/technical-debt-collector-z7dh
February 13, 2026 at 4:48 PM
When She Asks How Long Is It
#Long-functions #Codesmell #Spaghetticode #debugging #Badpractices
https://programmerhumor.io/debugging-memes/when-she-asks-how-long-is-it-rqqt
#Long-functions #Codesmell #Spaghetticode #debugging #Badpractices
https://programmerhumor.io/debugging-memes/when-she-asks-how-long-is-it-rqqt
February 12, 2026 at 4:48 PM
📰 Binaries
💬 Big binaries (25GiB!) raise eyebrows—consolidation vs. modularity debate. Is bigger really better? 🤔 #CodeSmell
https://news.ycombinator.com/item?id=46417791
💬 Big binaries (25GiB!) raise eyebrows—consolidation vs. modularity debate. Is bigger really better? 🤔 #CodeSmell
https://news.ycombinator.com/item?id=46417791
December 29, 2025 at 8:00 AM
📰 Binaries
💬 Big binaries (25GiB!) raise eyebrows—consolidation vs. modularity debate. Is bigger really better? 🤔 #CodeSmell
https://news.ycombinator.com/item?id=46417791
💬 Big binaries (25GiB!) raise eyebrows—consolidation vs. modularity debate. Is bigger really better? 🤔 #CodeSmell
https://news.ycombinator.com/item?id=46417791
Code Smell 315 - Cloudflare Feature Explosion #Technology #SoftwareEngineering #Other #Cloudflare #CodeSmell
Code Smell 315 - Cloudflare Feature Explosion
All the technology news you can handle in a single feed
puretech.news
December 11, 2025 at 2:00 AM
Code Smell 315 - Cloudflare Feature Explosion #Technology #SoftwareEngineering #Other #Cloudflare #CodeSmell
"Where the AI really struggles right now is knowing where it's made a wrong turn."
The discussion on being superficially flawless and AI generations being "odorless" in terms of #codesmell or "mathematical smell" is right on the money.
#TerenceTao #GenerativeAI
The discussion on being superficially flawless and AI generations being "odorless" in terms of #codesmell or "mathematical smell" is right on the money.
#TerenceTao #GenerativeAI
The limits of AI in mathematics: What makes human special | Terence Tao and Lex Fridman
YouTube video by Lex Clips
www.youtube.com
June 21, 2025 at 8:29 PM
"Where the AI really struggles right now is knowing where it's made a wrong turn."
The discussion on being superficially flawless and AI generations being "odorless" in terms of #codesmell or "mathematical smell" is right on the money.
#TerenceTao #GenerativeAI
The discussion on being superficially flawless and AI generations being "odorless" in terms of #codesmell or "mathematical smell" is right on the money.
#TerenceTao #GenerativeAI
Ya wanna be a #CowboyCoder?
Codin' at night 'cause I sleep all day
Cowboy, coder
#CodeSmell from a mile away
Codin' at night 'cause I sleep all day
Cowboy, coder
#CodeSmell from a mile away
September 14, 2025 at 5:25 PM
Ya wanna be a #CowboyCoder?
Codin' at night 'cause I sleep all day
Cowboy, coder
#CodeSmell from a mile away
Codin' at night 'cause I sleep all day
Cowboy, coder
#CodeSmell from a mile away
When your code is too hard to read, that's a 'code smell'. 👃 Like that time you tried to cook with a recipe written in binary. 🤯 Let's clean up that code! #CodeSmell #CleanCode #TechHumor
February 8, 2025 at 5:00 AM
When your code is too hard to read, that's a 'code smell'. 👃 Like that time you tried to cook with a recipe written in binary. 🤯 Let's clean up that code! #CodeSmell #CleanCode #TechHumor
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
dotNetDave Says… Clear Naming Standards Create Clearer Code and Clearer Code Leads to Better Software
Clear naming standards in software development significantly enhance code readability, maintainability, and overall quality. Consistent naming reduces cognitive load, facilitates collaboration, and…
dotnettips.wordpress.com
June 12, 2026 at 3:08 PM
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
dotNetDave Says… Clear Naming Standards Create Clearer Code and Clearer Code Leads to Better Software
Clear naming standards in software development significantly enhance code readability, maintainability, and overall quality. Consistent naming reduces cognitive load, facilitates collaboration, and…
dotnettips.wordpress.com
March 13, 2026 at 4:24 PM
If your code needs a walkthrough every time someone opens a file… naming is the problem.
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell
Clear naming standards create clearer code—and clearer code leads to better software.
dotNetDave breaks it down 👇
dotnettips.wordpress.com/2026/03/11/d...
#RockYourCode #MVPBuzz #CodeSmell