Shashank Soni’s Post

🚀 Today I learned one of the most important JavaScript concepts — Promises. At first, asynchronous code felt confusing to me. How does JavaScript handle API calls, delays, and tasks without stopping the whole program? Then I understood the role of Promises 👇 👉 A Promise is an object that represents the future result of an asynchronous operation. It has 3 states: ⏳ Pending – operation still running ✅ Fulfilled – completed successfully ❌ Rejected – operation failed Simple Example: fetch("/users") .then((res) => res.json()) .then((data) => console.log(data)) .catch((err) => console.log(err)); 💡 Key Takeaways: ✔️ Better handling of asynchronous code ✔️ Cleaner than callback hell ✔️ Easier error handling with .catch() ✔️ Foundation of async/await The more I learn JavaScript fundamentals, the more I realize how powerful it is. 💻 What JavaScript topic confused you the most at first? 👇 #JavaScript #WebDevelopment #Promises #AsyncAwait #MERNStack #Coding #Learning #100DaysOfCode

🚀 Day 37 of My Full Stack Development Journey Today I explored some advanced JavaScript concepts that are widely used in real-world development ⚡ Here’s what I learned today: 🔹 Function Expressions – Storing functions in variables 🔹 Higher Order Functions – Functions returning other functions 🔹 Methods – Functions inside objects 🔹 'this' keyword – Understanding context in JavaScript 🔹 try & catch – Handling errors gracefully 🔹 Arrow Functions – Cleaner and modern syntax 🔹 Implicit Return – Writing concise arrow functions 🔹 Solved practice questions and 5 assignment questions 💻 These concepts helped me understand how JavaScript becomes more powerful and flexible in real applications. Step by step, leveling up my coding skills 🚀 #FullStackJourney #WebDevelopment #JavaScript #LearningInPublic #100DaysOfCode #CodingJourney

Just wrapped up learning the fundamentals of TypeScript, and honestly—it’s changed how I think about writing JavaScript 🚀 At first, it felt like extra work 🤯 Adding types, fixing errors I didn’t “need” to fix… but once it clicked, it started saving me time instead of costing it. Here’s what stood out for me: Fewer bugs 🐛❌ → catching mistakes while coding instead of at runtime Better readability 📖 → my code explains itself more clearly Stronger confidence 💪 → refactoring doesn’t feel risky anymore Improved developer experience ⚡ → autocomplete + type hints are a game changer TypeScript doesn’t just make code “safer”—it makes you more intentional as a developer 🧠 Still learning, still building, but definitely glad I added this to my toolkit 🔧 #TypeScript #JavaScript #WebDevelopment #LearningInPublic #DeveloperJourney

🚀 JavaScript Event Loop Explained in a Simple Way JavaScript is a single-threaded language, but it still handles asynchronous tasks like API calls, timers, and events very efficiently. This is possible because of something called the Event Loop. Here’s a simple breakdown: 👉 When JavaScript runs code, it first executes everything in the Call Stack (synchronous code). 👉 If it encounters asynchronous tasks (like setTimeout, fetch requests, etc.), they are sent to the Web APIs. 👉 Once those tasks are completed, their callbacks go to the Callback Queue or Microtask Queue. 👉 The Event Loop continuously checks: “If the Call Stack is empty, push tasks from the queues into the Call Stack.” That’s how JavaScript handles async operations without blocking the main thread. 💡 Key takeaway: Even though JavaScript looks synchronous, the Event Loop makes asynchronous behavior possible. Still learning and exploring more core concepts like this every day. #JavaScript #WebDevelopment #Programming #FrontendDevelopment #100DaysOfCode

JavaScript becomes a different language the moment you realize this: 👉 Functions are not just reusable blocks… they are values. And once you understand that, concepts like callbacks and higher-order functions stop feeling confusing and start feeling natural. In this video, I’ve broken it down step by step: How values behave in JavaScript How objects behave Why functions behave the same way (and why that matters) From there, everything builds logically: ✔ Passing functions as arguments ✔ Returning functions from functions ✔ What exactly a callback is ✔ What a higher-order function is ✔ How this leads to more flexible and reusable code No jargon. No unnecessary complexity. Just a clear, practical approach to a core JavaScript concept. 🎥 Watch here: https://lnkd.in/gM8ibZ6M This is Part 1 — next, we’ll explore how this shows up in real code with: setTimeout, forEach, map, filter #JavaScript #WebDevelopment #FrontendDevelopment #Programming #Coding #LearnToCode #JavaScriptDeveloper #SoftwareDevelopment #Developers #CodingJourney #TechEducation #Hosiyar #JS

Day 12 of My JavaScript Journey 🚀 Today, I learned about iteration (loops) in JavaScript. I explored: • for loops • while loops I also learned two important statements used in loops: • break: It stops the loop completely • continue: It skips the current iteration and moves to the next Additionally, I practiced: • Looping through arrays • Looping backward • Nested loops (loop inside another loop) To be honest, I don’t fully understand everything yet, but I’m making progress and staying consistent. One thing I’ve realized: Loops require practice to really master. Key takeaway: Consistency and repetition are key when learning complex concepts like loops. #JavaScript #WebDevelopment #LearningInPublic #100DaysOfCode

🚀 JavaScript Journey In JS journey, today I learned some powerful array methods 💻✨ It’s amazing how a few methods can make working with data so much easier and cleaner: 🔹 Transform data 🔹 Filter results 🔹 Loop smarter, not harder Every small step is building a stronger foundation 📈 👉 Which JavaScript array method do you use the most? #JavaScript #WebDevelopment #coding #Coding #linkedinpost #linkedin

🚀 Day 952 of #1000DaysOfCode ✨ Understanding Arrow Functions in JavaScript Arrow functions look simple — but there’s more to them than just shorter syntax. In today’s post, I’ve explained arrow functions in a clear and practical way, including how they differ from regular functions and where they should (and shouldn’t) be used. From lexical `this` binding to cleaner function expressions, arrow functions help you write more concise and predictable code when used correctly. But they also come with limitations — especially when working with methods, constructors, or certain event handlers. Understanding these trade-offs is what helps you use them effectively in real-world applications. If you’re writing modern JavaScript, mastering arrow functions is a must-have skill. 👇 What’s one mistake you made while learning arrow functions? #Day952 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #JSBasics

🚨 Most developers use JavaScript daily… But don’t actually understand how it runs 👇 👉 Call Stack — the engine behind your code execution 💡 Simple rule: JavaScript follows 👉 Last In, First Out (LIFO) Which means: The last function added → runs first 🧠 What’s really happening? • Every function call goes into the Call Stack • It executes one by one (not all at once) • Once done → it gets removed 👉 That’s why JavaScript is single-threaded ⚠️ Where things go wrong: If functions keep stacking without stopping 👇 💥 Maximum Call Stack Size Exceeded 🎯 Why this matters: ✔ Helps you debug faster ✔ Makes async JavaScript easier ✔ Builds strong fundamentals ✔ Gives you an edge in interviews 🔥 Reality: Most developers focus on syntax But real growth comes from understanding execution 💬 Next time your code behaves weirdly… Don’t guess 👉 Think about the Call Stack #JavaScript #WebDevelopment #Frontend #Coding #Developers #LearnInPublic

🚀 Day 955 of #1000DaysOfCode ✨ How JavaScript Event Loop Works Behind the Curtains JavaScript looks simple on the surface — but under the hood, a lot is happening to make async code work smoothly. In today’s post, I’ve explained how the JavaScript Event Loop actually works behind the scenes, so you can understand how tasks are executed, queued, and prioritized. From the call stack to the callback queue and microtask queue, this concept explains why some functions run before others — even when the code looks sequential. Understanding the event loop helps you debug tricky async issues, avoid unexpected behavior, and write more predictable code. If you’re working with promises, async/await, or APIs, this is one of those concepts you must truly understand. 👇 What part of the event loop confuses you the most — call stack, microtasks, or callbacks? #Day955 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #AsyncJavaScript