Chetan Agrawal

This article explores the importance of incremental code coverage checks using Jest and provides a step-by-step guide on how to run coverage reports for only the newly made changes in your codebase. With code snippets and examples, the article also explains how to define coverage thresholds and fail tests if the coverage falls below the specified threshold. By following these best practices, you can improve the quality and reliability of your code, speed up your test runs, and ensure that your code meets the same quality standards across your entire codebase.

Explore the latest trends in dividend yield and return for leading Indian companies including Indian Oil Corporation Ltd, Steel Authority of India Ltd, REC Ltd, Power Finance Corporation Ltd, Coal India Ltd, Oil and Natural Gas Corporation Ltd, Power Grid Corporation of India Ltd, GAIL (India) Ltd, Hindustan Zinc Ltd, Oil India Ltd, SJVN Ltd, and Petronet LNG Ltd. This article provides a detailed analysis of these companies, their dividend payout ratios, and stock price performance, helping you make informed investment decisions.

Learn how to communicate between an iFrame and its parent window using postMessage API in JavaScript. This article provides examples of sending and receiving messages via Promises between an iFrame and its parent window, along code snippets used.

This article demonstrates via experimentation how spread operation is very expensive & why push operation is a better choice when it comes to performing large array merges

Troubleshoot why a Telegram bot (OpenClaw agent) won't respond in group chats. Learn how Telegram Bot Privacy Mode blocks non-command messages, how to disable privacy via @BotFather, why you must remove and re-add the bot after changing privacy settings, and how to configure OpenClaw group allowlists, requireMention, and gateway logs for reliable group responses.

Run PostgreSQL locally with Docker: start a Postgres container, get connection strings (psql, Prisma, Node pg, SQLAlchemy), view logs, create databases/users, and manage containers for local development.

How to use multiple GitHub accounts on one machine: configure separate SSH keys and ~/.ssh/config hosts, clone with custom hostnames, and set per-repo git http://user.name and http://user.email safely.

n8n Docker quick commands cheat sheet: run n8n with persistent volumes, map local folders, and export/import workflows and credentials using docker exec for fast local automation setup.