Entries by manojagrawal

Joins, Filters & Aggregations to Organize Data Efficiently

Data wrangling requires you to frequently join, clean, and aggregate the data. These aren’t steps-these are what analytics is all about. Data analysts use Python, SQL, or Excel, but whatever tool they use, you should know three big operations: Joins, Filters, and Aggregations. If you’re studying a Masters in Data Analytics, these are skills you’ll

How to Use Selenium to Test React and Angular Web Applications

If you’re working in Pune, you’ve likely seen how fast startups are building apps using React and Angular. These two front-end frameworks are everywhere—from eCommerce portals to SaaS dashboards. But testing them is a real challenge. It just needs a smarter approach. Companies in Pune’s IT sector—especially in Kharadi and Hinjewadi—are rapidly shifting to React-based

Ethical Hacking: The Art of Protecting Systems and Networks

White-hat hackers, also referred to as ethical hackers, apply their talents to make organizations secure against the threat of cyberattack. Ethical hackers can be used in ways that are not available to malicious hackers, and they have a code of ethics to follow, unlike malicious hackers. What is the significance of Ethical Hacking? Contemporary digital