Mircea Dumitrescu’s Post

Here is my first story on Medium: 🌟 Mastering JavaScript Closures: A Deep Dive 🌟: https://lnkd.in/eKQimSBC As a developer, I've often grappled with some of JavaScript's more challenging concepts but thanks to Frontend Masters and Will Sentance through their course https://lnkd.in/gq8tmJES I have mastered One of the trickiest but most rewarding topics that is closures. 🚀 In this article, I take you through a detailed journey into understanding closures, starting with the fundamental concepts of execution contexts and the call stack. 📚 ❤️ Like 🔁 Share 💬 Comment your thoughts Hope this proves beneficial! 👍 #JavaScript #webDevelopment #frontend #closure

Signals are proposed to be included as built-in JavaScript primitive https://t.co/pycpyTrNjz

Deep dive into JavaScript Symbols - what they are, why they matter, and how to use them effectively https://lnkd.in/gi26twKW #javascript #frontend #symbols

Optimizing your Javascript will take you to the next level!!! When you are coding your JS codebase you may be missing a lot of key parts that will improve your code. This article gathered many of those really well. #frontend #webdevelopment #javascript #coding https://lnkd.in/g8ddN67T

🚀 New Blog Post Alert for JavaScript Developers! 🚀 Are you leveraging the full potential of JavaScript's looping mechanisms? Understanding the difference between `for...in` and `for...of` can significantly enhance your code efficiency and maintainability. In my latest article, I delve deep into: - When to use for...in vs for...of - Best practices for iterating over objects and arrays - Real-world code examples and potential pitfalls Whether you're handling object properties or iterable data structures, mastering these loops is essential for writing clean and effective JavaScript code. 📖 Read the full article here: https://lnkd.in/eUhZXD7g #JavaScript #WebDevelopment #Frontend #CodingBestPractices #DeveloperTips

🚀 Optimizing Performance with Memoization in JavaScript! 🚀 When we talk about performance in JavaScript, one powerful concept often comes up: Memoization. It’s a technique used to cache the results of expensive function calls, preventing repeated calculations and improving efficiency—perfect for performance-intensive applications! 👨💻 Here’s a simple example in JavaScript using a sum() function: function sum(n) {   let sum = 0;   for (let i = 1; i <= n; i++) {     sum += i;   }   return sum; } function sumMemoization(fun) {   let cache = {};   return function (n) {     if (n in cache) {       return cache[n]; // Return cached result if available     } else {       let result = fun(n);       cache[n] = result; // Store new result in cache       return result;     }   }; } let memo = sumMemoization(sum); console.time(); console.log(memo(5)); // First call, calculates and caches result console.timeEnd(); console.time(); console.log(memo(5)); // Second call, retrieves from cache console.timeEnd(); 💡 How It Works: 1️⃣ First Call: The result of sum(5) is computed and stored in a cache. 2️⃣ Second Call: Instead of recalculating, we return the cached result, significantly reducing runtime. 🌟 Why Memoization? Saves Time: Avoids repeated calculations for the same inputs. Boosts Performance: Ideal for applications requiring repeated computations, such as data-intensive calculations, recursive functions, or backend data fetching. 🔧 Key Tips for Using Memoization: It’s most useful for pure functions (functions with consistent outputs for the same inputs). Not ideal for functions where inputs vary frequently and caching isn’t efficient. Using memoization can be a small change with a big impact on performance in real-world applications. Try it in your next project, and let me know how it goes! #JavaScript #Memoization #WebDevelopment #PerformanceOptimization #Coding #ProgrammingTips #JS #Frontend

Want to write clean, reusable and more expressive code? #JavaScript has a powerful feature known as #HigherOrderFunctions (HOFs), which not only accept #functions as arguments but also return them as results. This unique capability allows #developers to write more efficient and elegant solutions. The following article provides a comprehensive discussion of Higher Order Functions in JavaScript, from establishing a clear understanding of HOFs, their core concepts and the advantages they bring to the development process, to exploring some of the most commonly used HOFs in JavaScript, such as map, filter and reduce. You will dive into detailed explanations, syntax breakdowns and practical examples to solidify your understanding in this area. Don't miss out on leveling up your coding habilities!🚀👩🏻💻 #CodeQuality #DeveloperCommunity

Unlock the power of JavaScript with higher-order functions! 🔑 From callbacks to array methods, these functions can revolutionize your code. These functions elevate your code by treating other functions as citizens of the language itself. In simpler terms, HOFs can accept functions as arguments and even return functions as results. This ability allows developers to write clean, reusable, and expressive code. Read more : https://lnkd.in/gN66mRzh #JavaScript #HigherOrderFunctions #CodeSmart

Asynchrony in JavaScript: A Brief Look Back It is the year 2024. AI has taken over t... #beginners #frontend #javascript #prodsenslive #Software #webdev https://lnkd.in/dMdpMiAx https://lnkd.in/dAqvVqat

Event Loop and Concurrency in JavaScript What is the Event Loop? The Event Loop is a mechanism that allows JavaScript to perform non-blocking I/O operations despite being single-threaded. 🔄 Handles asynchronous operations efficiently 🧵 Manages tasks without multiple threads Call Stack: JavaScript uses the Call Stack to manage function execution. Functions are pushed and popped in a LIFO (Last In, First Out) order. 📚 Manages function calls 📤 LIFO order execution Web APIs: Web APIs handle asynchronous tasks like HTTP requests, setTimeout, and event listeners, moving them outside the Call Stack. 🌐 Handles async tasks ⏳ Offloads tasks from the Call Stack Callback Queue: When async operations complete, their callbacks are placed in the Callback Queue, waiting to be pushed onto the Call Stack. 📥 Stores completed async callbacks 🚦 Waits to be pushed to Call Stack Event Loop in Action: The Event Loop continuously checks if the Call Stack is empty. If it is, it pushes the first callback from the Callback Queue to the Call Stack. 🔄 Continuous monitoring 🎢 Moves callbacks to Call Stack when it's empty Concurrency: JavaScript achieves concurrency by leveraging the Event Loop, allowing it to handle multiple tasks efficiently without multiple threads. ⚡ Efficient task handling 🧵 Single-threaded concurrency Summary: The Event Loop enables JavaScript's single-threaded concurrency, managing async tasks through the Call Stack, Web APIs, and Callback Queue for smooth execution. 🔄 Key to async operations 🧵 Powers JavaScript's non-blocking nature #React #NodeJS #Angular #Next #Express #MERNStack #MEANStack #SoftwareDeveloper #WebDeveloper #JavaScript #TypeScript #GraphQL #TailwindCSS #MaterialUI #FullStackDeveloper #FrontendDev #BackendDev #CodingLife #WebDevelopment #ProgrammingJourney