CodeWithWho

It was clear that my article for this week was going to be about communication in a team. And then, like clockwork, my device went "hello... hello... hello?" mid-convo. If you know Nigeria, you know the network madness. But sometimes, it’s not the network—it’s your gear.

@Akintola_steve Just implementing something like this rn

This is an atomicity failure. And the fix is simple if you know it. Whether you're on Prisma, TypeORM, Sequelize, or raw SQL, the rule is the same: Any operation touching more than one record? Wrap it in a transaction. If one part fails, everything rolls back. Nobody loses a kobo.

A Nigerian fintech startup lost ₦47 million in one night. Not to hackers. Not to fraud. To one missing line of code. Every backend dev in Nigeria needs to see this

Lagos dev

I am a software developer. I want to connect with - Coders - Programmers - Full stack developer - software engineer - AI/ML IF YOU'RE INTO TECH.. LET'S #CONNECT

I declare this day open in the name of the father the son and the Holy Spirit

@RoseMarvelous4 U mean X?

Naija tech twitter 👀

@Leooweb3 Hey Let’s connect

Good morning, If you reply I'm following you ☕️

@Akintola_steve @stijnnoorman What is the secret?

@stijnnoorman I went from 900 followers to what I have now from January 26th this year till date. Initially a single post hardly gets 20 impressions right now my pinned tweet can speak justice. Regardless I’ll still love to make new mutuals, so let’s connect and keep growing

At the start, nobody sees your content. So you need to force eyes on it. And unless you have a network or money to spend, you do this with quality comments. Good comments = profile clicks = followers. Start leaving more comments.

@rejoiceitua Impressive stuff

Last year I helped over 300+ people get started in their tech careers. I taught over 170+ people design got free. I am tech content creator and also a mobile app and website designer. If you want to go into tech in 2026, I simplify tech for beginners and share resources like access to tech scholarships or free trainings 🥰 My name is Rejoice 💜

Good morning dev Happy Saturday Let’s get this gigs on the road

Why learn this? - No parentheses to mess up - Easy for computers to evaluate - Used in calculators, compilers, and even some programming languages Once you see it, you can't unsee it. RPN just clicks. Now go evaluate something backwards

The whole process in one sentence: Numbers go onto the stack. Operators pop two numbers off, do the math, and push the result back on. That's it. That's the entire algorithm. Simple enough to memorize. Powerful enough to build calculators and compilers.

@temivalentine_ No need to say "asking for me". Even if you said it's for someone else, Nigerians have normalised it as, it is for you. Yeah, I think inasmuch as we try to niche down, I don't think modelling deters web development that much So I would say bio it up.

if you're a tech person who also loves modelling.. do you put it in your bio or just let the content speak? asking for me 😭🥹

Why does this distinction matter? When someone says "binary tree is O(log n) for search," they're talking about the ADT (balanced case) When someone says "I used a struct with left/right pointers," they're talking about the implementation Same name. Two meanings.

ADT = blueprint 📐 Data Structure = actual building 🏠 ADT says: "A tree should let you insert and traverse." Data Structure says: "Here's the Node class with left/right pointers that does exactly that." One is a theory. One is practice.

Binary tree = two hats. One hat: Abstract Data Type (ADT) — the "what." Other hat: Data Structure — the "how." Same name. Different meaning depending on how you're talking about it. Let me explain.

Why does RPN work so well with a stack? Stack = pile of plates. Last on, first off. Numbers go on top. When an operator appears, you grab the top two plates, do the math, and put the result back. It's like the stack was made for this.

Reverse Polish Notation (RPN) is just math where the operator comes AFTER the numbers. Normal: 3 × 4 RPN: 3, 4, × No parentheses. No order confusion. Just numbers first, then the operation.

Linked List = treasure hunt 🔗 Each item points to the next. Start at the head, follow the trail. Good: - Easy to add/remove anywhere - Grows as you need Bad: - Finding item #100? Walk from start 😮‍💨 - Think: scavenger hunt — flexible but slow to find things. #LinkedList