- Python Advanced – Machine Learning
A first model, end to end and actually run: load the data, split it properly, fit a classifier, and measure it with something better than accuracy. What the workflow is, what the vocabulary means, and the leakage mistake that flatters every beginner.
- Python – Best Practices
The conventions that make Python read like Python — PEP 8 and the formatter that enforces it, naming, EAFP over LBYL, comprehensions over loops over map, and the handful of habits that separate working code from code someone else can maintain.
- Frontend Dev – Authentication and Security in the Browser
Everything the browser runs is public, so a frontend guard is a courtesy and never a control. Login flows, where to put a token and the real trade between localStorage and an HttpOnly cookie, restoring a session on refresh, XSS and CSRF in the terms that actually bite, and what a Content-Security-Policy buys you.
- Debugging
Debugging is a skill, not a talent, and most of it is one habit: read the error before you do anything else. Java's errors are unusually informative, and beginners routinely skip past them to start guessing. Reading a stack trace Four pieces of information, in order of usefulness: The message.…
- Angular – Interview Questions
The questions Angular interviews actually ask, answered the way you would say them out loud. Signals versus observables, why standalone replaced NgModules, how dependency injection resolves, what `OnPush` really does, template-driven versus reactive forms, and the change-detection question that separates people who have shipped Angular from people who have read about it.