Mr Anderson

7 posts

When you create an account on a website, you usually type your password once and never think about it again. The next ti...

Jul 8, 2026 3 min read

$Why Invalid Card Numbers Fail Instantly$

Have you ever noticed that payment forms sometimes reject a credit card number almost instantly? In many cases, the vali...

Jul 5, 2026 3 min read

Every few weeks, another headline appears claiming that AI is going to replace junior developers. Depending on the day,...

Jul 3, 2026 4 min read

A few months ago I started building a new side project. Nothing particularly complicated, just a small application that...

Jul 3, 2026 3 min read

In 2026, with AI-powered IDEs writing your fetch calls, Postman generating collections from a description, and copilots...

Mar 18, 2026 8 min read

If you just learned what testing is and you're still a bit unsure how to start, you're not alone. Many beginner develope...

Jan 2, 2026 6 min read

Learning Javascript often feels clear at the beginning. You write some code, refresh the browser, and see something work...

Dec 28, 2025 8 min read