Mastering JavaScript String Methods

3 Must-Know JavaScript Concepts for Every Developer: • Closures • Promises & Async/Await • Event Loop If you understand these well, your coding level improves significantly. Which one do you find hardest? #JavaScript #FrontendDevelopment #CodingTips

JavaScript quirk that still confuses developers: typeof null === "object" This isn’t a feature. It’s a legacy bug. Understanding the difference between: null (intentional absence) undefined (not assigned) …prevents subtle bugs in production. #javascript #webdevelopment #coding

What is Hoisting in JavaScript ? ✅ One liner = Memory Creation ➡️Hoisting⬅️ Code Execution See Diagram Full Working Test your JavaScript fundamentals with output-based interview questions focused on scope, hoisting, closures, and asynchronous behavior. 💬 Share your answer or reasoning in the comments. #JavaScript #InterviewPreparation #SoftwareEngineering #WebDevelopment #DevelopersOfLinkedIn #frontend #backend #coding #learning

🚀 Learning JavaScript? Start with Strings. Strings are one of the most used things in JavaScript. If you can work with text, you can build forms, messages, search features, and much more. Let’s understand the basics 👇 • Create a string using quotes let name = "JavaScript"; • Find string length name.length • Join strings together "Hello " + "World" • Change text case name.toUpperCase() or name.toLowerCase() • Get part of a string name.substring(0,4) Small concept… but used everywhere in real projects. Master the basics → coding becomes easier. #JavaScript #WebDevelopment #FrontendDevelopment #LearnToCode #ProgrammingBasics #JavaScriptTips #CodingForBeginners #DeveloperCommunity #TechEducation #SoftwareDevelopment

WHAT IS FIRST FORMOST CHECKING BEFORE ANYTHING ELSE IN JAVASCRIPT CODE BY BROWSER ENGINE ? ................... ITS SYNTAX CHECKING. Test your JavaScript fundamentals with output-based interview questions focused on scope, hoisting, closures, and asynchronous behavior. 💬 Share your answer or reasoning in the comments. #JavaScript #InterviewPreparation #SoftwareEngineering #WebDevelopment #DevelopersOfLinkedIn #frontend #backend #coding #learning

`this` KEYWORD RESOLUTION DECISION TREE IN JAVASCRIPT Test your JavaScript fundamentals with output-based interview questions focused on scope, hoisting, closures, and asynchronous behavior. 💬 Share your answer or reasoning in the comments. #JavaScript #InterviewPreparation #SoftwareEngineering #WebDevelopment #DevelopersOfLinkedIn #frontend #backend #coding #learning

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

JavaScript vs. TypeScript: Which Side Are You On? 🚀 Ever felt like your JavaScript code is holding on by a thread? 😅 Let's talk about the game-changer. On one side: JavaScript Flexible, dynamic, and quick to start But those runtime errors? They'll find you at the worst moments "Undefined is not a function" – sound familiar? On the other side: TypeScript Catch errors BEFORE runtime Better autocomplete = faster development Self-documenting code that your future self will thank you for Refactor with confidence, not fear The reality? TypeScript isn't about replacing JavaScript – it's about leveling up when your project grows beyond a certain scale. #JavaScript #TypeScript #WebDevelopment #Coding #SoftwareEngineering #DeveloperLife #SoftwareEngineering #WebDevelopment #ReactJS #NextJS #FrontendDevelopment #JavaScript #FullStackDeveloper #Programming #TechCareers #BuildInPublic

🔄 Reverse a String in JavaScript (Easy Trick) Reversing a string is a classic interview question. 👉 How it works: 🔹 split("") → converts string to array 🔹 reverse() → reverses the array 🔹 join("") → converts back to string 🚀 Pro Tip: Strings are immutable in JavaScript → you can’t modify them directly, so convert to array or rebuild. #JavaScript #WebDevelopment #Coding #InterviewPrep #Developers #TechTips

🚀 Is JavaScript Single-Threaded? Most beginners get confused here… 😵 Let’s make it simple 👇 🧠 JavaScript is Single-Threaded 👉 It runs one task at a time 👉 Code executes line by line (synchronously) 😵 But then… How does it handle things like: 👉 setTimeout 👉 API calls 👉 Promises ⚡ The answer: Event Loop 👉 JS uses: ✔ Call Stack ✔ Web APIs ✔ Callback Queue ✔ Event Loop 💡 What actually happens? 👉 Async tasks go to Web APIs 👉 Then move to Callback Queue 👉 Event Loop pushes them back to Call Stack 🔥 Final Understanding: 👉 JavaScript = Single-threaded 👉 But handles async tasks smartly ⚡ One line to remember: 👉 “JS is single-threaded but non-blocking” 💬 Was this confusing before? Now clear? 📌 Save this — this is a must-know for interviews #javascript #webdevelopment #frontend #coding #programming #javascriptdeveloper #learncoding #developers #100DaysOfCode