#javascript

Preparing a GitHub Repository for Claude, ChatGPT, or Gemini

A practical way to select the right parts of a codebase and prepare them for AI coding assistants.

Running WebContainer in the Browser Without Breaking Firebase or Razorpay

I broke Razorpay and Firebase with a single line of code.

Migrating Angular Custom Controls from ControlValueAccessor to Signal Forms

Angular’s new Signal Forms API (@angular/forms/signals) simplifies state management and removes the boilerplate historically required by…

Type coercion in arithmetic operations in JavaScript

The + operator is special

JavaScript Basics

querySelectorAll.

Next.js Image Optimization in 2026: next/image v4, AVIF by Default, and the Config Changes Teams…

The configuration defaults that ship with next/image v4 break production image pipelines. Learn the AVIF format switch, remotePatterns…

JavaScript Numerical Computational Series

Optimizer and Regularization.

React 19.2 New Features: A Complete Developer Guide

Activity, useEffectEvent, cacheSignal, and Partial Pre-Rendering — explained the way a senior dev would explain it over coffee, not a…

React 19.2 Is Out And It Subtly Changes The Way You’ll Build UIs Forever

React brings Activity, useEffectEvent, and page rendering bridging static dynamic pages as the third React release of the year.

Is FullCalendar Still the Best Choice in 2026?

A practical comparison of FullCalendar and SVAR Calendar for modern React, Vue, and Svelte applications.

Self-Productivity Tool Series

Tic tac toe.

Meteor pluggable DDP transport: meet uWebSockets.js

For thirteen years, every DDP message your Meteor app sent rode the same rails: SockJS. Server-side, that’s a copy-fork of SockJS v0.3.4…

JavaScript Numerical Computational Series

Image segmentation: create an image and plot array mask.

Mastering Parallel Data Fetching in Next.js

Stop chaining awaits! Combine Next.js Suspense, Promise.all, and Promise.allSettled for lightning-fast, fault-tolerant parallel loading

How to Extract Text from Word in JavaScript: A React Guide

Extracting text from Word documents in JavaScript is a critical requirement for modern web applications. Whether you are building an online…

JavaScript Basics

Non-overlapping.

Full Stack Developer Course in Hyderabad

Learn Full Stack Development :

From push() to reduce(): Mastering JavaScript Array Methods

1. Introduction

No Server, No API Key, No Internet: An LLM in a Browser Tab

I built an offline recipe generator with Transformers.js. Here is what I learned, including the parts that went badly.

Arrays in JavaScript: Store More, Do More

1 . Introduction

React Hooks Explained from Scratch: The Complete Guide Every Developer Needs

Stop memorizing Hooks. Start understanding how they actually work.

How to Start Your Software Development Career in 2026: A Complete Roadmap for Beginners

The software industry continues to create exciting opportunities for students, fresh graduates, and career changers. However, many aspiring…

BrowserStack Frontend Developer Interview Experience

I recently came across an interview experience for the Frontend Developer role at BrowserStack. The interview process was heavily focused…

TypeScript Syntax Cheat Sheet for Beginners | Variables, Objects, Arrays, Functions & Generics

Learn the most important TypeScript syntax with simple examples, including variables, arrays, objects, functions, return types, interfaces…

The UrlFetchApp Code That Stops Your Apps Script From Silently Losing Data

Exponential backoff, jitter, per-source rate limiting, and a dead-letter queue — the four layers every production integration needs.

Java Design Patterns Explained: Part 1 — Understanding Design Patterns with Real-World Social Media…

Every developer eventually reaches a point where writing code isn’t the biggest challenge — designing clean, maintainable, and scalable…

Your App’s Translations Don’t Need a $200/Month SaaS. A Google Sheet Will Do.

A Sheets-backed i18n database — Apps Script JSON endpoint, build-time sync, fallback locales, and missing-key alerts.

Stop Running Every Playwright Test on Every PR

How coverage-guided Test Impact Analysis cut our E2E suite by ~67% — and why unit-test “related tests” don’t work for browsers

JavaScript Destructuring 📦

Unpack arrays and objects into variables in one line.

SouthCore Real Estate Website Redesign

How I Elevated This Brokerage Firm’s Website From Outdated to Outstanding

Your Apps Script Has No Tests Because Jest Can’t Load SpreadsheetApp. Here’s the Fix.

A 4-layer test pyramid for Google Apps Script — pure functions, mocked services, sheet integration, and clasp-driven CI.

JavaScript Reflect: A Complete Guide to the Reflect API with Practical Examples

Introduction:

Why Your Test Automation Framework Feels Like a Mess (And How to Fix the Folder Structure Once and…

A Staff SDET’s field guide to designing a Playwright + JavaScript framework architecture that scales — with a real folder tree and real…

A Friendly, Step-by-Step SQL Guide for Absolute Beginners

If you are new to programming or data science, learning SQL is one of the highest-value skills you can pick up.

The Constructor Is Not a Lifecycle Hook

Reading a parent-bound @Input() inside the constructor?

Closures in JavaScript: How Functions Actually Remember variables

A classic definition of closure according to MDN is: a closure is the combination of a function bundled together with references to its…

Full Stack Java Developer vs Full Stack Python: Which Pays More in India (2026)? | QUASTECH

Meta Description

JavaScript Tutorial for Beginners: How JavaScript Runs?(Day — 3)

If you’ve completed the previous two blogs in this series, you already know what JavaScript is and how to set up your development…

Understanding Server-Sent Events (SSE) in ASP.NET Core

There comes a point in almost every application where the server needs to notify the client that something has changed.

JavaScript Numbers

In JavaScript, all numbers — whether integers like 10 or decimals like 10.5—are represented internally as 64-bit floating-point numbers…

Headless JS Tasks: Handling Location Events When Your App Is Completely Killed

There’s a specific moment that trips up almost everyone building background location tracking in React Native: the app is fully terminated…

Mastering fetch(): How to request data in modern JavaScript

In JavaScript, fetch() is a built-in tool used to send and receive data over the network (like requesting info from an API or downloading a…

Memoization useMemo()Explained: Why React Doesn’t Need to Repeat the Same Work

When I first came across the word Memoization, I thought it was just another complicated computer science term.

How JavaScript Works With HTML to Create Interactive Web Pages

JavaScript works with HTML by accessing page elements through the Document Object Model, listening for user or browser events, and updating…

# Fuel Pass Pro: Real-Time Fuel Rationing System

QA Learning Journal #3: Understanding Data Types & Operators

While learning Playwright, I quickly realized that writing automation scripts is about much more than interacting with web elements. Every…

Dynamic Data: A Beginner’s Guide to JavaScript Data Type

Primitive Data Types:

JavaScript: Como usar o filter() para criar buscas inteligentes em Arrays

Se você já precisou encontrar apenas alguns itens dentro de um array, provavelmente chegou ao momento de conhecer um dos métodos mais…

JAVASCRIPT - Part 11

The Codex (from Beginner to Pro)

Labeled Boxes: A Beginner’s Guide to JavaScript Variables

Variables act as labeled storage boxes. When a code is written, there should be a way to hold onto information, like a user’s name, a…