2 articles found
Database indexes are one of the most powerful tools for optimizing query performance. Learn how B-tree indexes, hash indexes, composite indexes, and more work under the hood, and discover strategies for indexing in both PostgreSQL and MongoDB.
Most React performance advice sounds great in a blog post and falls apart in a real codebase. I've spent years profiling production apps, and the bottlenecks are almost never where you'd guess. Here's what actually matters -- from the memo traps everyone falls into, to the virtualization wins that saved our dashboards, to the React 18 concurrent features that changed how I think about responsiveness.