Vijay Shekh’s Post

🚀 Just published a new blog on Arrow Functions in JavaScript. In this, I explain what arrow functions are and how they differ from normal functions in a simple way. Great for beginners learning modern JavaScript. Read here: https://lnkd.in/dKZm3aNu #JavaScript #WebDevelopment #Frontend

✨ 15 JavaScript Snippets Every Developer Must Know Sometimes, small snippets can save you hours of effort and make your code much cleaner. In today’s post, I’ve shared 15 powerful JavaScript snippets that every developer should have in their toolkit — from handling arrays and objects to writing cleaner and more efficient logic. These are not just shortcuts, but practical patterns that you’ll find yourself using again and again in real-world projects. Knowing these snippets helps you write code faster, reduce bugs, and improve overall readability. If you’re working with JavaScript daily, mastering these small patterns can make a big difference in your productivity. 👇 Which JavaScript snippet do you use the most in your projects? #Day949 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #Next #CodingCommunity #JSDevelopers

🚀 Day 947 of #1000DaysOfCode ✨ The Shortest JavaScript Program (You’ll Be Surprised 😮) This is one of those concepts that looks super simple… but completely changes how you see JavaScript. In today’s post, I’ve broken down the shortest possible JavaScript program — and trust me, it’s not just about writing less code. Behind this tiny piece of code lies how JavaScript actually runs your program, creates execution context, and prepares memory before even executing a single line. Sounds crazy? Wait till you see it. This is the kind of concept that once you understand, a lot of “weird JavaScript behavior” suddenly starts making sense. If you’re serious about mastering JavaScript, you don’t want to miss this one. 👉 Swipe through the carousel — this might blow your mind 🤯 👇 Did you already know what the shortest JS program is? #Day947 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #Next #CodingCommunity #JSDeepDive

🚀 Day 949 of #1000DaysOfCode ✨ 15 JavaScript Snippets Every Developer Must Know Sometimes, small snippets can save you hours of effort and make your code much cleaner. In today’s post, I’ve shared 15 powerful JavaScript snippets that every developer should have in their toolkit — from handling arrays and objects to writing cleaner and more efficient logic. These are not just shortcuts, but practical patterns that you’ll find yourself using again and again in real-world projects. Knowing these snippets helps you write code faster, reduce bugs, and improve overall readability. If you’re working with JavaScript daily, mastering these small patterns can make a big difference in your productivity. 👇 Which JavaScript snippet do you use the most in your projects? #Day949 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #Next #CodingCommunity #JSDevelopers

Variables in JavaScript Most beginners learn variables in JavaScript… But very few understand values first. And without understanding values, JavaScript can feel confusing. Let’s make it simple. 👇 In JavaScript, a value is simply data stored in memory. When you write code like: let age = 25; 👉 age = variable 👉 25 = value Here are some common JavaScript values: • Number → 10, 3.14, 100 • String → "Hello", "JavaScript" • Boolean → true or false • Null / Undefined → empty or missing values • Objects & Arrays → complex values like {} and [] Think of it like this: 📦 Variable = Box 🎁 Value = What’s inside the box JavaScript programs run by creating, storing, and using values all the time. If you understand values well, the rest of JavaScript becomes much easier. #JavaScript #WebDevelopment #FrontendDevelopment #ProgrammingBasics #JavaScriptTips #LearnToCode #CodingForBeginners #SoftwareDevelopment #JSDeveloper #TechEducation

🚀 Understanding the JavaScript Event Loop While learning JavaScript, one concept that really changed how I think about asynchronous code is the Event Loop. JavaScript is single-threaded, which means it can execute only one task at a time. But thanks to the Event Loop, it can still handle asynchronous operations like API calls, timers, and user interactions without blocking the main thread. Here’s the simple flow: 1️⃣ Code enters the Call Stack 2️⃣ Async tasks go to Web APIs 3️⃣ Their callbacks move to the Callback Queue 4️⃣ The Event Loop checks if the Call Stack is empty 5️⃣ Then it pushes the callback into the Call Stack for execution This mechanism is what allows JavaScript to remain non-blocking and highly efficient. Understanding the Event Loop helped me write better asynchronous code using Promises, async/await, and callbacks. If you're learning JavaScript, mastering the Event Loop is a must! 💡 #JavaScript #EventLoop #WebDevelopment #AsyncJavaScript #CodingJourney #FrontendDevelopment

🚀 JavaScript Concepts Series – Day 3 / 30 👀 Let's Revise the Basics🧐 Understanding the difference between var, let, and const is a fundamental concept in JavaScript. Choosing the right variable declaration helps prevent bugs and makes your code more predictable. 🔹 var Function scoped Can be redeclared Can be reassigned Hoisted (initialized with undefined) 🔹 let Block scoped Cannot be redeclared in the same scope Can be reassigned Hoisted but stays in Temporal Dead Zone (TDZ) until initialized 🔹 const Block scoped Cannot be redeclared Cannot be reassigned Must be initialized during declaration 💡 Key Insight var → Old way of declaring variables (function scoped) let → Use when the value may change const → Use when the value should not change Using let and const helps write safer and more maintainable JavaScript code. More JavaScript concepts coming soon. 🚀 #javascript #js #webdevelopment #frontenddeveloper #coding #programming #softwaredeveloper #developers #learnjavascript #javascriptdeveloper #codinglife #devcommunity #webdev #reactjs #mernstack #codingjourney #codeeveryday #techlearning #developerlife #100daysofcode

Day 20 of my JavaScript journey 🚀 Built a Password Generator with advanced features using HTML, CSS, and JavaScript. Features: 🔐 Custom password length (8–20 characters) 🔤 Include/exclude uppercase, lowercase, numbers, and symbols 📋 One-click copy to clipboard 📊 Password strength indicator This project helped me dive deeper into logic building, user input handling, and creating practical tools. 💻 GitHub Repo: https://lnkd.in/g7kFznGK Focused on building projects that are not just functional, but actually useful. 💻 #JavaScript #WebDevelopment #FrontendDeveloper #100DaysOfCode #CodingJourney

🔄 JavaScript is single-threaded — yet somehow handles async perfectly. Most devs I've met can write async code, but can't explain why it works. Once this mental model clicked for me, I stopped fighting JavaScript and started working with it. The Event Loop in 30 seconds: When JS hits an async task (setTimeout, fetch, event listener), it doesn't wait. It hands the task off → to the Web APIs (browser/Node handles it) The result waits → in the Callback Queue The Event Loop checks → "Is the call stack empty?" Only then → the callback runs Here's the part most tutorials skip 👇 Promises don't go to the Callback Queue. They go to the Microtask Queue — which runs before setTimeout, every single time.

Javascript: Undefined vs null Ever seen undefined and null in JavaScript and felt confused? 🤔 You’re not alone. Many beginners mix them up. But the difference is actually very simple. Here’s the easy way to understand it: • undefined → A variable is declared but no value is assigned yet let name; console.log(name); // undefined • null → A developer intentionally sets an empty value let user = null; • undefined is automatic – JavaScript gives it by default. • null is intentional – The developer sets it manually. • Both mean “no value”, but the reason is different. Simple rule to remember: 👉 undefined = not assigned yet 👉 null = intentionally empty Understanding this small concept can help you avoid many bugs in JavaScript. #JavaScript #WebDevelopment #FrontendDevelopment #ProgrammingTips #LearnJavaScript #CodingForBeginners #SoftwareEngineering #TechEducation #JavaScriptDeveloper #DevCommunity