Debugging Locally vs Production Issues

Loops are used to repeat actions in a program without writing the same code again and again. They’re used when something needs to run multiple times. for example: iterating over a list, retrying a request, counting values. Common types: for → when the number of iterations is known while → when a condition controls the loop do...while → runs at least once In simple terms Loops automate repetition. #JavaScript #ProgrammingBasics #DeveloperNotes #LearnToCode

Building Blocks: JavaScript Variables Solidified a core concept today: JavaScript variables. Understanding let, const, and the legacy var is more than just syntax—it's about intent, scope, and writing predictable code. const:  for values that shouldn't be reassigned. let:  for variables that will change. Understanding scope prevents unexpected bugs. It's a fundamental step, but strong foundations enable everything built on top. Onward to the next concept! #JavaScript #WebDevelopment #Coding #ProgrammingBasics #LearningToCode #SoftwareDevelopment #Tech #Variables

Ever wondered how JavaScript manages to run your code without freezing the browser? It’s all thanks to the Event Loop! The call stack handles your function calls, while the event loop continuously checks if the stack is empty. If it is, it pushes the next task (like a button click or an API response) from the task queue onto the stack. Understanding this mechanism is key to writing efficient, non-blocking asynchronous code! #JavaScript #WebDevelopment #Coding #Programming #FrontendDevelopment #Tech #Engineer

“Checked the logs. Found the bug.” 😅 Every developer knows this moment: You dig through a mountain of logs, feel like a detective, and finally spot the culprit. But here’s the uncomfortable truth: Most bugs aren’t hard to fix. They’re hard to see. If your logs don’t tell the right story, you’re not debugging—you’re guessing. And guessing scales terribly in production. The real win isn’t “finding the bug.” It’s building systems where bugs can’t hide. #softwaredevelopment #webdevelopment #programming #javascript #debugging #observability

The slice() method helps you extract specific parts of a string without modifying the original value. Simple, powerful, and super useful in real-world projects. Keep learning, keep building 💻✨ #JavaScript #WebDevelopment #FrontendDevelopment #Coding

Generic Functions are powerful, but sometimes they are too flexible. In my last post, I discussed how Generic Functions allow inputs to be anything. But sometimes, 'anything' is a problem. By default, a generic parameter <T> is a black box. TypeScript assumes nothing about it. If you try to access a specific property (like .message or .length) on it, TypeScript screams because it can't guarantee that property exists. The solution? Type Constraints! Just like the generic types, we can restrict generics in generic functions using the 'extends' keyword. Instead of saying 'This can be anything,' you say: 'This can be anything as long as it has this minimum structure.' Think of an Error Utility. You need to ensure an error has a 'message,' but you don't want to strip away extra fields like 'code' or 'stack' from your custom error objects. Constraints strike the perfect balance: Minimum requirements for the function, maximum flexibility for the caller. #TypeScript #JavaScript #Programming #Coding #WebDevelopment

Most JavaScript string bugs aren’t caused by bad APIs — they’re caused by bad assumptions. Strings are immutable, indexing is unsafe, and every “small” transformation allocates new memory. Ignoring case normalization and intent-expressive methods (includes, slice) is how subtle bugs survive code review. String handling isn’t beginner material — it’s where discipline shows. #JavaScript #SoftwareEngineering #CleanCode #Frontend #Programming

Minimizing Maximum Pair Sum in Arrays 👉 Day 75 / Day 93 👈 23🔥 The idea: Sort the array Pair smallest with largest, second smallest with second largest, and so on Track the maximum sum among all pairs Example: nums = [3, 5, 2, 3] Sorted: [2, 3, 3, 5] Pairs: (2, 5) = 7, (3, 3) = 6 Maximum pair sum = 7 👉 This is the minimized maximum pair sum. #Coding #Algorithms #DataStructures #JavaScript #TypeScript #CleanCode #ProblemSolving #LeetCode #InterviewPrep

One JavaScript concept that finally clicked for me was closures. Not the textbook definition. The practical part. A function remembers the variables around it, even after that outer function is done running. So state can live quietly where you don’t see it, but it’s still there. At first this felt like magic. Then it felt dangerous. Now it feels useful. Most bugs I’ve had with closures weren’t because JS was weird. They were because I forgot what my code was holding onto. #JavaScript #Coding #Programming

✅ Solved LeetCode: First Bad Version (278) Used a clean binary search approach in JavaScript to find the first bad version efficiently. - Narrowed the search space using left & right pointers - Checked mid with isBadVersion() - Eliminated unnecessary versions on each step ⏱ Time: O(log n) 📦 Space: O(1) Simple, optimal, and efficient! 🚀 #LeetCode #BinarySearch #JavaScript #DSA #Coding