Performance
Java Memory Management: Avoiding OutOfMemoryErrors
My worst production moment was at 3 AM on a Saturday. The application started throwing `OutOfMemoryError`. The heap was full, and the GC was thrashing. I h…
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Performance
Core Concepts
Understanding Python Variables and Data Types
Variables are like labeled boxes where you store information. In Python, you don't need to declare what type of data a variable will hold. You simply assig…
Databases
Working with Databases in Python: SQLite and SQLAlchemy
Most applications need to store data persistently, and databases are the standard solution. Python has built-in support for SQLite, a lightweight, file-bas…
JavaScript
Local Storage vs. Session Storage vs. Cookies
When I needed to save a user's theme preference (dark mode) on my first web app, I was confused by the options. Cookies are the old school way. They are se…
Python Basics
Python Basics: Your First Step into Coding
Python is often called the best language for beginners. Its syntax is clean, readable, and feels almost like writing plain English. When you first start, y…
Text Processing
Regular Expressions in Python for Text Processing
Regular expressions (regex) are a powerful tool for pattern matching in text. Python's re module provides full regex support. With regex, you can search fo…
Internationalization
Internationalization (i18n) for Web Apps: Beyond Simple Translations
Building web applications for global audiences requires more than just translating text strings. True internationalization (i18n) encompasses number format…
Backend
Building Your First API with Node.js and Express
Creating your own API is a milestone for any web developer, and Node.js with Express makes it surprisingly approachable. Start by initializing a project wi…
How to Use Claude
Claude for Coding: How Developers Are Using It in Real Projects
Developers have been integrating Claude into their workflows in ways that go well beyond 'generate a function.' The ways Claude gets used in real engineeri…