Posts
Browse all articles about JavaScript, React, TypeScript, and web development.
Property-Based Testing in JavaScript with fast-check
March 3, 2026
Discover how property-based testing with fast-check automatically generates test cases and finds edge cases that traditional example-based tests miss in your JavaScript applications.
5 Test Coverage Mistakes That Hide Bugs
March 2, 2026
Discover 5 common test coverage mistakes that create a false sense of security and let bugs slip through. Learn how to write tests that actually catch issues.
Mock Service Worker: Test APIs Without a Backend
March 1, 2026
Learn how Mock Service Worker (MSW) lets you mock APIs at the network level for testing and development—no backend required. Includes practical examples and real-world patterns.
End-to-End Testing with Playwright: Real-World Examples
February 28, 2026
Practical Playwright testing strategies I learned the hard way — from authentication flows to CI/CD integration, with real code examples that actually work in production.
Build Robust Tests with Vitest: A Modern Testing Guide
February 27, 2026
Learn how to write robust, maintainable tests with Vitest. From setup to advanced patterns, discover why this modern testing framework is changing how we approach JavaScript testing in 2026.
7 Testing Patterns Every JavaScript Developer Should Know
February 26, 2026
Master these seven essential testing patterns to write better, more maintainable tests in JavaScript. From AAA pattern to Page Objects, learn practical techniques that actually work.
Debouncing vs Throttling: When to Use Each
February 25, 2026
Learn the difference between debouncing and throttling in JavaScript, when to use each pattern, and how to implement them from scratch for better web performance.
Web Workers: Move Heavy Computation Off the Main Thread
February 24, 2026
Your UI is freezing because you're drowning the main thread. Learn how web workers offload heavy computation to background threads and keep your app responsive.
Memory Leaks in How to Find and Fix Them
February 23, 2026
Learn how to detect, diagnose, and fix memory leaks in JavaScript applications using Chrome DevTools and proven prevention strategies.
5 Bundle Size Optimization Techniques That Actually Work
February 22, 2026
Learn five practical bundle size optimization techniques that deliver real performance improvements. From tree shaking to compression strategies, discover what actually works in production.
Mastering Core Web Vitals with JavaScript
February 21, 2026
Learn how to measure, optimize, and monitor Core Web Vitals using JavaScript. Discover the patterns that destroy performance and the techniques that fix them.
Code Splitting in 2026: Lazy Loading Done Right
February 20, 2026
Learn how to cut your initial load time by 40% with modern code splitting strategies. From React.lazy to production-ready architectures, here's what actually works in 2026.