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149 articles
Learn the essential HTML boilerplate, semantic tags, headings, paragraphs, links, images, and how browsers render HTML.
Learn what Git is, why it matters, and how to make your first commit.
Learn PHP variables, the 8 data types, type juggling, and type-checking functions.
Master CSS Grid — defining rows and columns, placing items, named areas, auto-fill vs auto-fit for responsive layouts, and full page layout examples.
Master Python list comprehensions, dict/set comprehensions, generator expressions — syntax, nested comprehensions, and when to use each.
Master PHP exception handling — try-catch-finally, custom exception classes, global error handlers, and production-safe error logging.
Master SQL subqueries — scalar, column, table, and correlated subqueries. EXISTS vs IN performance, and when to use CTEs instead.
Master ES6+ JavaScript features — destructuring, spread/rest, optional chaining, nullish coalescing, template literals used in every modern codebase.
Design a distributed rate limiter — token bucket vs sliding window, Redis-backed implementation, API middleware, and handling distributed deployments.
