Many developers start by removing duplicates in JavaScript using a for loop. It works. It gets the job done. But over time, clean code becomes more important than just working code. That’s where Set() changes the game. One line. Readable. Efficient. The difference between beginner and experienced developers often isn’t complexity — it’s simplicity. Great developers don’t write longer code. They write smarter code. Small improvements like this compound over time and make a real difference in maintainability and performance. ——————- I’m Dayo Jaiye, a software engineer. I share my journey, coding practices, and practical tips to help developers write cleaner, faster, and more maintainable code. Connect with me to learn from my experiences, level up your skills, and discover real-world software engineering insights. #javascript #webdevelopment #softwareengineering #coding #programming
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𝗧𝗵𝗲 𝗯𝗶𝗴𝗴𝗲𝘀𝘁 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝗮 𝗷𝘂𝗻𝗶𝗼𝗿 𝗮𝗻𝗱 𝗮 𝘀𝗲𝗻𝗶𝗼𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗶𝘀𝗻’𝘁 𝗰𝗼𝗱𝗶𝗻𝗴. 𝗜𝘁’𝘀 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴. Over the years in development, I’ve noticed a pattern. 👩💻 𝗝𝘂𝗻𝗶𝗼𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 Try multiple fixes until something works. 🧑💻 𝗠𝗶𝗱-𝗹𝗲𝘃𝗲𝗹 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 Search the error and try solutions they find. 🧠 𝗦𝗲𝗻𝗶𝗼𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 Pause and ask one question: “𝗪𝗵𝗲𝗿𝗲 𝗲𝘅𝗮𝗰𝘁𝗹𝘆 𝗶𝘀 𝘁𝗵𝗲 𝘀𝘆𝘀𝘁𝗲𝗺 𝗯𝗿𝗲𝗮𝗸𝗶𝗻𝗴?” They don’t guess. They 𝘁𝗿𝗮𝗰𝗲 𝘁𝗵𝗲 𝘀𝘆𝘀𝘁𝗲𝗺. A solid debugging approach usually looks like this: 1️⃣ Reproduce the issue consistently 2️⃣ Read the error carefully (most clues are already there) 3️⃣ Identify the failing layer — UI, state, API, or network 4️⃣ Narrow down the root cause 5️⃣ Fix the cause, not just the symptom The reality is: > Great developers aren’t the ones who write code the fastest. > They’re the ones who 𝘂𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗱𝗲𝗲𝗽𝗹𝘆 𝗲𝗻𝗼𝘂𝗴𝗵 𝘁𝗼 𝗳𝗶𝘅 𝘄𝗵𝗮𝘁 𝗯𝗿𝗲𝗮𝗸𝘀. And the more complex our applications become, the more valuable this skill gets. Curious to hear from fellow developers: 𝗪𝗵𝗮𝘁’𝘀 𝘁𝗵𝗲 𝘁𝗼𝘂𝗴𝗵𝗲𝘀𝘁 𝗯𝘂𝗴 𝘆𝗼𝘂’𝘃𝗲 𝗲𝘃𝗲𝗿 𝗱𝗲𝗯𝘂𝗴𝗴𝗲𝗱? #SoftwareEngineering #FrontendDevelopment #Debugging #ReactJS #DeveloperMindset
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The Reality of Backend Dev: Focus, Frustration, and "The Fix" 💻 They say coding is 10% writing and 90% debugging. Today, I lived that 90%. We’ve all been there: Your code is structured, your logic feels solid, and then… MODULE_NOT_FOUND. Node.js crashes, and your terminal turns into a wall of red text. It’s easy to get frustrated, but these "red walls" are actually where the real learning happens. The Lesson: Focus on Architecture, Not Just Syntax As I move deeper into Express.js and MVC (Model-View-Controller), I’ve realized that most bugs don’t come from a missing semicolon. They come from a lack of focus on the Structure. By shifting my focus to professional architecture, I’m learning how to beat the "nitty-gritty" details that cause these crashes: MVC for Mental Clarity: Splitting my code into Models (Data), Views (UI), and Controllers (Logic) means when an error happens, I know exactly which "department" to check. The Power of Frameworks: I’m letting Express.js do the heavy lifting of routing and parsing, so I can focus my brainpower on the Business Logic. Organized Debugging: Instead of guessing, I’m learning to trace the Middleware Funnel. If a request doesn't reach the response, I check the next() calls in my middleware chain. My Debugging Workflow 🛠️ Breathe: A crashed server isn't a failure; it’s a hint. Trace the Path: Did the route trigger the controller? Did the controller call the model?. Verify the "Handshake": In MVC, if the Controller and Model aren't talking correctly, the View will never render. The bottom line: Professionalism in coding isn't about never having errors—it's about building an architecture so organized that debugging becomes a science, not a guessing game. #NodeJS #WebDevelopment #MVC #SoftwareEngineering #Debugging #BuildInPublic #CleanCode #ExpressJS #CodingLife
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I always thought being a good developer meant writing more code. But the truth is: Great developers write less code but better decisions. The shift happened when I started asking different questions • Can this problem be solved with a simpler approach? • Will this code still make sense 6 months from now? • Is performance, accessibility, and scalability considered? • Can another developer understand this in 30 seconds? Clean architecture. Clear logic. Thoughtful decisions. That’s what separates coders from engineers. Every project now teaches me the same lesson: The goal isn’t to write clever code. The goal is to build systems that last. What’s one lesson that changed the way you write code? #FrontendDevelopment #SoftwareEngineering #JavaScript #CleanCode
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VIBE Coding 💻✨🚀 vs VIBE Debugging 🐞😵💫🔥 We all love the excitement of building something new 🤩🧠 — clean logic ✅, smooth UI 🎨, everything flowing perfectly 🌊💡. But the real test begins when the bugs show up 🐞⚠️😅. That’s where patience 🧘♀️, problem-solving 🧩, late nights 🌙☕, and real growth 📈🔥 happen. Coding gives you confidence 💪😎 Debugging builds your character 🧠🛠️ Both are essential ⚡ Both are skills 🎯 And mastering debugging is what truly separates a developer 👩💻👨💻 from a coder 💻✨ Keep building 🏗️ Keep fixing 🔧 Keep growing 🌱🚀 #WebDevelopment #SoftwareDevelopment #CodingLife #Debugging #ProgrammerLife #TechCareers #Developers #LearningJourney #FrontendDeveloper #BackendDeveloper #100DaysOfCode #TechCommunity
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🚀 Mastering SOLID Principles: The Backbone of Scalable Code As developers, we often focus on writing code that works. But in real-world applications, the real challenge is writing code that is maintainable, scalable, and adaptable. That’s where SOLID Design Principles come in 👇 🔹 S — Single Responsibility Principle One class, one responsibility. Keeps code clean and easy to maintain. 🔹 O — Open/Closed Principle Open for extension, closed for modification. Add features without breaking existing code. 🔹 L — Liskov Substitution Principle Subclasses should behave like their parent class — no surprises. 🔹 I — Interface Segregation Principle Avoid forcing unnecessary methods. Keep interfaces lean and focused. 🔹 D — Dependency Inversion Principle Depend on abstractions, not concrete implementations — enabling flexibility and scalability. 💡 Why it matters? Applying SOLID principles helps you: ✔ Build scalable architectures ✔ Write cleaner, testable code ✔ Reduce bugs and technical debt ✔ Adapt quickly to changing requirements In my journey as a Full Stack Developer, I’ve realized SOLID is not just theory — it’s a practical mindset that transforms how you design systems, from APIs to React applications. 🔥 Great developers don’t just write code — they design systems that last. #SOLID #CleanCode #SoftwareEngineering #JavaScript #NodeJS #ReactJS #FullStackDeveloper #CodingBestPractices #Tech
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Day 12 of #100DaysOfCode My background image refused to show. And for 20 minutes, I thought something was wrong with my code. It wasn’t. It was my understanding. Today I learned that background-image in CSS must use url() — and more importantly, that file paths matter. Here’s what most beginners get wrong: • Forgetting url() • Wrong folder structure • Not using ../ when CSS is in another folder • Small syntax mistakes that break everything What looks like a “small styling issue” is actually foundational frontend knowledge. This journey is teaching me something powerful: Software engineering isn’t about writing plenty of code. It’s about understanding how things connect. If you’re learning to code, what small concept took you longer than expected to understand? #100DaysOfCode #WebDevelopment #FrontendDeveloper #WomenInTech #TechJourney #LearningInPublic
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💻 Controversial Coding Comparison: One Line vs Readable Code Sometimes developers try to write the shortest code possible. But should we? Take this JavaScript example. ❌ Clever but harder to read: const evenSquares = arr.filter(x => !(x % 2)).map(x => x * x); ✅ More explicit and readable: const evenNumbers = arr.filter(number => number % 2 === 0); const evenSquares = evenNumbers.map(number => { return number * number; }); Both do the same thing, but the second version may be easier for a team to maintain. In real-world software engineering, code is read far more often than it is written. So the real question is: Are you writing code for the computer, or for the next developer who will maintain it? Sometimes “smart” code isn’t actually good code. What would you choose? 👍 Short & clever code 💬 Clear & maintainable code #Programming #SoftwareEngineering #CleanCode #JavaScript #CodingChallenge
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🚀 Shipping 0.3.0 of Vox taught me something important: building features is easy compared to designing what happens underneath. Going from 0.2.0 to 0.3.0 pushed me to think much deeper about: ⚡ batching updates efficiently 🧠 dependency tracking without unnecessary recomputations 🧩 keeping DOM updates predictable 📦 designing APIs that stay simple while the internals get smarter What I enjoy most about building projects like this is that every release becomes less about code written, and more about understanding how modern systems actually behave under pressure. Small projects can teach surprisingly big engineering lessons. GitHub: https://lnkd.in/dV4XsxiF #JavaScript #Frontend #SoftwareEngineering #WebDevelopment #OpenSource #Programming #React #TypeScript #Engineering #Tech
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I've just seen 5 posts about clean code in less than 1 hour, all listing the same 4 guidelines in the same order... Come on, don't you have more interesting things to post than copy pasted sh.t originating from an almost 20-years old book? There's not even the start of any evidence that these rules all actually work and create value. just heuristics.
Passionate Frontend Developer | Creating Seamless User Experiences with React, HTML, CSS, & JavaScript
Writing Clean JavaScript Code is a Superpower Anyone can write code that works. But writing clean, readable, and maintainable code is what separates good developers from great ones. Here are a few principles I follow while writing JavaScript: ✔ Use meaningful variable names ✔ Keep functions small and focused ✔ Avoid unnecessary complexity ✔ Follow consistent code structure ✔ Write code that other developers can easily understand Because in real-world development: Your code will be read more times than it is written. Clean code improves: • Team collaboration • Debugging speed • Code maintainability • Long-term scalability Good developers write code that works. Great developers write code that others can easily understand. #JavaScript #CleanCode #Programming #SoftwareDevelopment #WebDevelopment
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Ever had one of those moments where your code looks perfectly fine… but nothing runs? 😅 Sometimes the smallest detail can stop an entire application from working. In this case, the issue is a simple but common mistake many developers encounter while working with JavaScript and HTML. The line: <script src="app.js"> Looks correct at first glance, but it's missing something essential. A small fix can make your JavaScript finally execute and bring your application to life. This is a great reminder that in software development, attention to detail matters. Debugging often isn’t about complex algorithms—it’s about carefully reviewing the basics. Moments like these are part of every developer’s journey, whether you're just starting or already deep into building scalable systems. 💡 Can you spot the fix? Let’s keep learning, debugging, and building better products every day. #JavaScript #WebDevelopment #FrontendDevelopment #CodingLife #Debugging #SoftwareEngineering #100DaysOfCode #Programming #Developers #TechCommunity #LearnToCode #CodingTips #DeveloperLife #HTML #FullStackDevelopment #TechCareers #CodeNewbie #SoftwareDeveloper #BuildInPublic #CodingJourney
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