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Understanding Buffers in Node.js: When and Why to Use Them

What Are Buffers in Node.js?Buffers are a built-in class in Node.js designed to handle raw binary data.They are similar to arrays of integers but store raw binary data instead of regular JavaScript numbers.Buffers are especially important in Node.js because many operations involve dealing with streams of binary data (like files, network streams, etc.). Why Not Use Regular JS Arrays?JavaScript strings and arrays are not suitable for handling raw binary data because they use UTF-16 enco

Emerge Career (YC S22) Is Hiring

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Basic ECommerce with Umai

Here is the start of an ecommerce site using umai.js<!DOCTYPE html><html lang="it"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Termoclima Pellet Shop - umai</title> <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet"> <style> :root { --primary: #e63946; --primary-dark: #c1121f; --secondary: #1d3

My First Steps in JavaScript: A Simple Breakdown

For the last two days, I’ve been learning the basics of JavaScript, and it has been really fun and easy to understand. These topics may look simple, but they are the building blocks for everything we will write in the future. So I wanted to share what I learned in a clear and beginner-friendly way.1. Variables in JavaScriptVariables are like containers that store information.In JavaScript, we mostly use three ways to create them:letUsed for values that can change later.let age = 20;age = 21;cons

Most technical problems are people problems

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Making RSS More Fun

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How to Generate Speech from Text in JavaScript

Text-to-Speech (TTS) allows applications to produce spoken audio from text. Whether you're building a reader, an assistant, or adding simple voice output, the Orca Text-to-Speech Web SDK makes it possible to generate speech directly in the browser. This guide walks through the minimal setup needed to get it running. What You'll BuildA minimal JavaScript setup that:Installs the Orca Text-to-Speech Web SDKLoads an Orca model fileCreates an OrcaWorker instanceCalls synthesize() to generate raw

Netflix to Acquire Warner Bros

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Mock APIs in Minutes — Build Smarter, Ship Faster with MockForMe

Modern development moves fast — but backend dependencies slow you down. MockForMe removes that bottleneck.Boost development velocity: build even when backend is incomplete.Reduce bugs: test edge cases, errors, and payload variations early.Ship faster: unblock your release pipeline with predictable mock data.Zero code changes: just initialize the SDK — your existing API calls stay untouched.Free for individual developers. What Is MockForMe?MockForMe is a zero-config API mocking platform that

A practical guide on building reusable React card components using styled-components. It covers component structure, dynamic props, styling, and creating a clean, responsive UI layout.

Building Reusable React Card Components with Styled Components Hashir Khan ・ Oct 9 #programming #reactcards #react #frontend

Implement Noise Suppression in JavaScript

Noise suppression can significantly improve the audio quality in any web app. This tutorial shows how to integrate the Koala Noise Suppression Web SDK from Picovoice and run speech enhancement directly in the browser. Since processing happens on-device, audio never leaves the user's machine, keeping voice data private with low latency. What You'll BuildA simple webpage that accesses the microphone and applies Koala's noise-suppression model. This serves as a foundation for building voice ch

Sugars, Gum, Stardust Found in NASA's Asteroid Bennu Samples

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Your DSA Toolkit: Hashmaps, Queues & Stacks (JavaScript)

IntroductionAs I continue my DSA study journey, this blog is the next step in my ongoing series where I document what I’m learning and hopefully make it easier for others to follow along.If you missed the previous one, it covered Big O notation and arrays, the foundations of understanding how our code performs and stores data. You can give it a read hereIn this blog, we’re going to look at three new data structures: hashmaps, stacks, and queues. These structures appear everywhere, from han

JavaScript Promises & Under-the-Hood Mechanics

Promises, while simple in idea and concept, the way they are written or implemented in JavaScript is slightly confusing to many beginners or even experienced developers who come from other languages. Let's look at a typical asynchronous function-async function increment_val(val = 0) { const val1 = get_base_value(); const val2 = Number(await get_user_input()); // asynchronous task const final_val = val + val1 + val2; return final_val;}I've written this intentionally in a verbose way to make

How I Built a Dr. Jekyll & Mr. Hyde App with Kiro (Kiroween Submission)

The Challenge For the Kiroween Hackathon, I wanted to enter the "Skeleton Crew" category. The goal? Build a code foundation versatile enough to power two completely different apps. I decided to build a "Universal Core"—one backend to rule them all.The Experiment I started with a clean, professional Task Management App. Standard stuff: Express, Prisma, React.Then came the twist. I wanted to see if I could use Kiro to mutate this boring app into a Halloween Grimoire without changing the underlying

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Standardizing Express.js Error Handling with One Library

If you've been working with Express.js for a while, you know the struggle. You start a project, and soon your controllers look like this:// The "Bad" Wayapp.post('/users', async (req, res) => { try { // ... logic } catch (error) { console.error(error); if (error.code === 'P2002') { // Prisma unique constraint return res.status(400).json({ message: 'User already exists' }); } // ... 10 more if/else checks res.status(500).json({ message: 'Something went wrong' }); }}

Building GamerLinks: A Link-in-Bio Platform with Auto Content Scheduling for Gaming Creators

Building GamerLinks: A Link-in-Bio Platform with Auto Content Scheduling for Gaming CreatorsI spent the last few months building GamerLinks—a link-in-bio platform specifically designed for gaming creators. Here's what I built, why I built it, and the technical challenges I faced. The ProblemGaming creators (streamers, YouTubers, etc.) need more than just a static list of links. They need to:Show their stream schedulesHighlight monetization optionsBuild communitiesTrack meaningful anal

Mantine BorderAnimate: Light up your UI with elegant, high‑performance animated borders

Elevate your React interfaces with BorderAnimate, a polished Mantine extension that wraps any element—cards, buttons, inputs, alerts—and adds stunning, configurable border animations without sacrificing performance. If you’re building with Next.js and TypeScript and already rely on Mantine UI, this component feels like a natural superpower upgrade to your design system. Why BorderAnimate belongs in modern Mantine projectsVisual feedback and motion are essential to contemporary UI. BorderAni