Sammy Jerry

Full Stack Developer | Mobile App and Website Developer

Portfolio⬇⬇

[Sammy Jerry @SammyJerryDev]

Biggest source of bugs in your experience?

😅 Async/await mistakes
🤦 Null/undefined errors
💀 State management
🤯 Third-party library updates

Vote + explain in the replies 👇 #SammyDev

#DevPoll #SammyDev #Programming #WebDev

[Sammy Jerry @SammyJerryDev]

Backend tip: always return consistent error shapes from your API.

{ success: false, code: 'NOT_FOUND', message: '...' }

Your frontend team (which is also you at 11pm) will love you for it. 🙏 #NodeJS #BackendDev

#BackendDev #API #SammyDev #NodeJS

[Sammy Jerry @SammyJerryDev]

What brought the idea of the product you are working on??

[Sammy Jerry @SammyJerryDev]

First freelance client paid me $150 for a website that took me 3 weeks.

Now I charge 100x that.

The jump wasn't skills — it was confidence, proof of work, and learning to say no to lowball offers. 💰 #SammyDev

#Freelance #SammyDev #DevJourney #WebDev

[Sammy Jerry @SammyJerryDev]

CSS tip: use gap instead of margin on flex/grid children.

Gap doesn't affect the outer edges. Margin does.

display: flex; gap: 16px is cleaner than adding margin to every child. 🎯 #CSS #SammyDev

#CSS #Frontend #SammyDev #WebDev

[Sammy Jerry @SammyJerryDev]

🧵The 5-layer architecture I use for every Express API:

1. Routes- just routing, nothing else
2. Controllers- handle req/res
3. Services- business logic lives here
4. Repositories- all DB queries
5. Models- Prisma/Mongoose schemas

Separation of concerns = survives team growth.

[Sammy Jerry @SammyJerryDev]

Day I decided to become a full-stack dev: I submitted a bug report on an app, got ignored for 6 months, and thought — I could build this better myself.

Spoiler: I did. 💪 #SammyDev

#DevJourney #SammyDev #BuildInPublic #fullstackfrenzy

[Sammy Jerry @SammyJerryDev]

Use console.table() instead of console.log() for arrays of objects.

Instantly readable. No more squinting at nested {}.

Small win that saves brain cycles every day. 🧠 #JavaScript #SammyDev

#JavaScript #DevTips #SammyDev #WebDev

[Sammy Jerry @SammyJerryDev]

Interviewer: Where do you see yourself in 5 years?

Me: Fixing the same CSS centering bug I've been fixing for 10 years, just in a different framework.

#DevHumor #SammyDev

#CSS #DevHumor #SammyDev #WebDev

[Sammy Jerry @SammyJerryDev]

What's your go-to state manager in 2024?

No wrong answers (okay maybe one). #SammyDev #Poll

#ReactJS #StateManagement #SammyDev #WebDev

[Sammy Jerry @SammyJerryDev]

Started a new side project today — a dev productivity tool that tracks your focus sessions per task.

Building it fully in the open. Stack: Next.js + Supabase + Expo.

Watch this space. 👀 #SammyDev #BuildInPublic

#BuildInPublic #SammyDev #NextJS #Supabase

[Sammy Jerry @SammyJerryDev]

Learned this the hard way: never store sensitive data in AsyncStorage (React Native).

It's unencrypted. Use expo-secure-store or react-native-keychain for tokens, passwords, secrets.

Security first. Always. 🔐

#ReactNative #MobileSecurity #SammyDev #AppDev

[Sammy Jerry @SammyJerryDev]

TypeScript tip: use satisfies operator instead of as when you want type-checking without widening.

const config = { port: 3000 } satisfies ServerConfig

Catch errors at definition, not at usage. #TypeScript #SammyDev

#TypeScript #JavaScript #SammyDev #WebDev

[Sammy Jerry @SammyJerryDev]

Just complete a new project recently

https://t.co/LGvzkYCNUW

[Sammy Jerry @SammyJerryDev]

Me: I'll write tests later.

Also me, 6 months later: I wonder why this randomly breaks in production every Tuesday at 3am.

Write the tests. I'm begging you. 😩 #DevHumor #SammyDev

#DevHumor #Testing #SammyDev #Programming

[Sammy Jerry @SammyJerryDev]

🧵 React Native performance checklist before shipping:
-Remove all console.log in prod
-Use FlatList not ScrollView for lists
-Memoize heavy components
-Use Hermes engine
-Reduce bridge calls
-Optimize images
-Lazy load screens

Do this. Ship fast apps.
#ReactNative #AppDev

[Sammy Jerry @SammyJerryDev]

Happy Sunday Founders!

|￣￣￣￣￣￣￣￣￣￣￣￣￣￣|
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[Sammy Jerry @SammyJerryDev]

Happy Sunday Founders!

|￣￣￣￣￣￣￣￣￣￣￣￣￣￣|
| share your Product Link |
|＿＿＿＿＿＿＿＿＿＿＿＿＿＿|
\ (•◡•) /
\ /
——
| |
|_ |

[Sammy Jerry @SammyJerryDev]

🧵 React Native performance checklist before shipping:
-Remove all console.log in prod
-Use FlatList not ScrollView for lists
-Memoize heavy components
-Use Hermes engine
-Reduce bridge calls
-Optimize images
-Lazy load screens

Do this. Ship fast apps.
#ReactNative #AppDev

[Sammy Jerry @SammyJerryDev]

Me: I'll write tests later.

Also me, 6 months later: I wonder why this randomly breaks in production every Tuesday at 3am.

Write the tests. I'm begging you. 😩 #DevHumor #SammyDev

#DevHumor #Testing #SammyDev #Programming