JavaScript Objects: Key-Value Pairs & Notation

🚀 Just published a new blog on Understanding Objects in JavaScript. In this article, I explain what objects are, why they are important in JavaScript, and how they store data using key–value pairs. I also covered creating objects, accessing properties using dot and bracket notation, updating values, adding or deleting properties, and looping through object keys. 📖 Read the full article here: https://lnkd.in/gbxx6N2G Inspired by the amazing teaching of Hitesh Choudhary Sir and Piyush Garg Sir from Chai Aur Code. ☕💻 #javascript #webdevelopment #learninginpublic #chaiAurCode

🚀 JavaScript Fundamentals Series — Part 4 Functions are where JavaScript becomes powerful and reusable. Instead of repeating code, functions let you create reusable logic blocks. In this guide you'll learn: • What functions actually are • Parameters vs arguments • Return values • Function declarations vs expressions • How functions organize your code Functions are the foundation of almost everything in JavaScript. Full guide 👇 https://lnkd.in/dtgFaW2r #javascript #webdevelopment #coding

🚀 Just published a new blog on Arrow Functions in JavaScript. In this article, I explained: • What Arrow Functions are • Basic syntax and parameters • Implicit vs Explicit return • Difference between normal functions and arrow functions • Simple examples using math operations and "map()" Arrow functions help make JavaScript code shorter, cleaner, and more readable, which is why they are widely used in modern JavaScript development. 📖 Read the full article here: https://lnkd.in/gipX6C2x Big thanks to Hitesh Choudhary Sir and Piyush Garg Sir for their amazing teaching through Chai Aur Code that keeps inspiring me to learn and share. ☕💻 #javascript #webdevelopment #arrowfunctions #chaiAurCode #learninginpublic

When I started learning JavaScript, async code felt unpredictable. Things didn’t execute in order. Logs appeared out of nowhere. And promises felt like “magic”. The real issue? I didn’t understand callbacks. Everything in async JavaScript builds on top of them. So I wrote this article to break it down clearly: 👉 Execution flow 👉 Sync vs async callbacks 👉 Why they still matter in modern code If async JS has ever felt confusing, this will help. https://lnkd.in/g7DJ7yXX #JavaScript #LearningToCode #Callbacks #SoftwareDevelopment

🚀 Just published a new blog on JavaScript Arrays 101: Storing Multiple Values Easily. In this article, I explain the basics of arrays in JavaScript—what arrays are, why we use them, and how they help store multiple values in a single variable. I also covered creating arrays, accessing elements using index, updating values, using the length property, and looping through arrays with simple examples. 📖 Read the full article here: https://lnkd.in/gEvcCHGv Inspired by the amazing teaching of Hitesh Choudhary Sir and Piyush Garg Sir from Chai Aur Code. ☕💻 #javascript #webdevelopment #learninginpublic #chaiAurCode

Just published another blog on JavaScript Operators. While learning and revisiting JavaScript fundamentals, I realized how important it is to clearly understand operators — especially the differences that often confuse developers, like == vs ===. So I wrote a blog explaining different JavaScript operators with simple explanations and examples. Writing about these concepts is also helping me strengthen my own understanding. If you’re learning JavaScript or revisiting the basics, you might find it useful: https://lnkd.in/giiEkdNR Always open to feedback and suggestions. #JavaScript #WebDevelopment #LearningInPublic #BuildInPublic #ChaiCode #chaiaurcode

One of the first things that trips up JavaScript developers — at every level — is the `this` keyword. It doesn't work like most other languages. In JavaScript, `this` is not about where a function is written. It's about how it is called. Once you understand the 4 binding rules, it becomes very predictable. 01 — Default binding When called alone, `this` is the global object (or `undefined` in strict mode) 02 — Implicit binding When called on an object, `this` is that object 03 — Explicit binding `.call()`, `.apply()`, and `.bind()` let you set `this` manually 04 — Arrow functions They don't have their own `this`. They inherit it from the surrounding scope // Rule 2 — implicit const user = { name: "Aman", greet() { console.log(this.name); } }; user.greet(); // "Aman" — this = user // Rule 3 — explicit greet.call({ name: "Aman" }); // "Aman" — this = the object you passed // Rule 4 — arrow function inside a method const timer = { start() { setTimeout(() => console.log(this), 1000); // this = timer ✓ } }; The most practical takeaway from Rule 4: 🔵 Regular function → `this` is set by the caller 🟢 Arrow function → `this` is set by the enclosing scope This is why arrow functions are so useful inside callbacks and event handlers — they hold onto the `this` you actually want, without any extra work. Which rule do you find most developers struggle with? I'd love to hear your experience in the comments. 👇 #JavaScript #WebDevelopment #SoftwareEngineering #Programming #100DaysOfCode

🚀 Just published a new blog on Function Declaration vs Function Expression in JavaScript. In this article, I explain the difference between function declarations and function expressions, how each syntax works, and when to use them. I also covered the basic idea of hoisting with simple examples to make the concept easy for beginners. 📖 Read the full article here: https://lnkd.in/g3Acgus7 Inspired by the amazing teaching of Hitesh Choudhary Sir and Piyush Garg Sir from Chai Aur Code. ☕💻 #javascript #webdevelopment #learninginpublic #chaiAurCode

5 JavaScript concepts that make everything else click. Learn these deeply and frameworks stop being magic. 1. Closures A function that remembers the scope it was created in. This is how callbacks, event listeners, and setTimeout actually work. Not understanding closures = constant bugs you can't explain. 2. The Event Loop JavaScript is single-threaded. The event loop is how async code doesn't block everything else. If you've ever wondered why setTimeout(fn, 0) still runs after synchronous code — this is why. 3. Prototypal Inheritance Every object in JS has a prototype chain. Classes are just syntax sugar over this. Knowing this means you understand how methods are shared and where "cannot read properties of undefined" is actually coming from. 4. this - and how it changes 'this' is not fixed. It depends on how a function is called, not where it's defined. Arrow functions inherit 'this' from their enclosing scope. Regular functions create their own. This one trips up everyone. 5. Promises and the microtask queue Promises don't just "make async code cleaner." They run in the microtask queue, which runs before the next macrotask (setTimeout). Understanding this makes async debugging dramatically easier. Which of these gave you the biggest headache? 👇 #webdeveloper #coding #javascript

What To Know in JavaScript (2026 Edition) An overview of what's new in language features, frameworks, runtimes, build tools, testing, and more.