Mastering Array.prototype.reduce() in JavaScript

🚀 JavaScript Variables & Functions Understanding how variables and functions work is key to writing efficient JavaScript code. 📌 Variable Keywords: 🔹 var → Can be redeclared & reassigned 🔹 let → Cannot be redeclared, but can be reassigned 🔹 const → Cannot be redeclared or reassigned 📌 Functions in JavaScript: 🔹 Built-in Functions → alert(), prompt(), parseInt() 🔹 User-defined Functions → Custom logic as per requirement 📌 Types of User Functions: ✔ No argument, no return ✔ With argument, no return ✔ With argument & return value 💡 Why Functions? Code reusability Cleaner & shorter code 👉 Mastering these basics builds a strong JavaScript foundation. #JavaScript #WebDevelopment #Frontend #Coding #Developers #Programming

Some JavaScript concepts sound simple but create confusion in real projects. One common example is Debounce vs Throttle. Both are used to control how frequently a function executes when events happen repeatedly, such as scrolling, resizing, or typing in an input field. Understanding the difference helps developers build better-performing and more responsive applications. In this article, I explained the concept with simple examples so developers can easily understand when to use Debounce and when to use Throttle. Read the article: Debounce vs Throttle in JavaScript https://lnkd.in/gK5NE4Cn #JavaScript #FrontendDevelopment #WebDevelopment #SoftwareDevelopment #Programming #Coding

JavaScript concepts that still mess with experienced developers 👇 JavaScript is fun… until it suddenly isn’t 😄 You think you understand it — then one random bug shows up and humbles you instantly. Here are a few usual suspects: this keyword You don’t control it. It depends on how the function is called… not where you wrote it. Closures Functions don’t just execute — they carry their past with them. (Yes, your variables are being remembered 👀) Event Loop Async code feels instant… but it’s actually a waiting line behind the scenes. == vs === JavaScript trying to be “helpful” = chaos. Just use === and move on. Hoisting JavaScript reads your code… before it actually runs it. Sounds illegal, but okay. Shallow vs Deep Copy You thought you copied an object… but now both variables are changing together 🤡 The funny part? Most real-world bugs don’t come from complex logic — they come from these “simple” things. JavaScript is not hard… it’s just misleadingly easy. Which one got you at least once? #JavaScript #WebDevelopment #Frontend #Programming #Developers #DevCommunity #Coding #SoftwareEngineering

Wrote a new blog on Destructuring in JavaScript. One of those features that seems small at first, but has a huge impact on code quality. Covering: • What destructuring actually means • Array vs object destructuring • Default values (and why they matter) • Before vs after comparisons • Writing cleaner, more readable code https://lnkd.in/g2y6rmnt Hitesh Choudhary Chai Aur Code Piyush Garg Akash Kadlag Jay Kadlag Nikhil Rathore #javascript #webdevelopment #frontend #coding #programming #developers #learninpublic #100daysofcode

In JavaScript, errors are not rare edge cases. They are part of normal execution. The difference between fragile and reliable code is how you handle them. In my latest blog, I break down: • What runtime errors actually are (and why they matter) • How try and catch really work under the hood • The role of the finally block • How to throw and design custom errors • Why graceful failure is a core engineering skill https://lnkd.in/gkYpAYfX #JavaScript #WebDevelopment #FrontendDevelopment #Programming #SoftwareEngineering #Coding #LearnToCode #Developers #ErrorHandling

Just wrote a blog on the "new" keyword in JS Under the hood, new follows a precise process: • Creates a new empty object • Links it to the constructor’s prototype • Binds this to that object • Executes the constructor function • Returns the final instance If you're learning JavaScript or revisiting fundamentals, this will sharpen your understanding 👇 https://lnkd.in/gEitS7KJ #JavaScript #WebDevelopment #Frontend #Programming #Coding #LearnInPublic #Developers #SoftwareEngineering

Spread and Rest in JavaScript use the same ... syntax but behave differently. • Spread expands values • Rest collects values In this blog, I’ve explained both with clear examples using arrays, objects, and practical use cases 👇 https://lnkd.in/g3p4YVH4 #javascript #webdevelopment #frontend #coding #programming #learninpublic

JavaScript Logic Building: Counting Vowels in a String I’ve been focusing on strengthening my JavaScript fundamentals lately, and today I tackled a classic logic problem: Counting the total number of vowels within a long string. My Logic & Workflow: Deconstruction: I first used .split(" ") to break the string down into an array of individual words. Nested Iteration: I used .forEach() to loop through each word, then split those words again into an array of characters. Validation: By defining a vowelArr, I used the .includes() method to check if each character was a vowel. Tracking: Every time a match was found, the character was pushed into a totalVowel array, allowing me to easily get the final count via .length. The Code: JavaScript function findVowel(text) { const a = text.split(" "); const totalVowel = []; const vowelArr = ["a", "e", "o", "i", "u"]; a.forEach((t) => { const z = t.split(""); const x = z.forEach((y) => { if (vowelArr.includes(y)) { totalVowel.push(y); } }); }); console.log(totalVowel?.length); } findVowel( "JavaScript is an amazing programming language. It allows developers to create interactive web applications with ease. Learning to code opens up a world of endless possibilities and innovation!", ); Breaking down problems into smaller, manageable steps is one of the most rewarding parts of software development. It’s all about the journey of improving logic, one function at a time! Find more sloved tasks here:https://lnkd.in/gFAEdKEn #JavaScript #WebDevelopment #CodingJourney #ProblemSolving #SoftwareEngineer #FullStack #LearningToCode #Programming

𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 `𝐭𝐡𝐢𝐬` 𝐢𝐧 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭 𝐜𝐚𝐧 𝐛𝐞 𝐟𝐫𝐮𝐬𝐭𝐫𝐚𝐭𝐢𝐧𝐠. It changes based on how a function is called — not where it’s defined. Add prototypes and constructors to the mix… and things get even more confusing. We’ve simplified these concepts with practical examples: • Object creation patterns • Prototype-based method sharing • `call()` and `apply()` • Method borrowing Read here: https://lnkd.in/gMDyyUMX #JavaScript #Frontend #Programming

Most confusion around 𝘁𝗵𝗶𝘀 in JavaScript comes from one mistake: We focus on where the function is written instead of how it’s called. Here’s a simple breakdown 👇 🔗 https://lnkd.in/gaZCBkUe Chai Aur Code ☕ #javascript #programming #webdevelopment