How to Debug JavaScript Like a Senior Developer in 2025 (opens in new tab)

If you're still using console.log to debug JavaScript, you're wasting hours every week. After debugging production issues for 8+ years, here's the exact workflow that cuts debugging time by 60%. The 5 Debugging Tools That Actually Matter Tool Best For Time Saved Chrome DevTools Sources Step-through debugging 40% Conditional Breakpoints Narrowing down bugs in loops 25% Performance Panel Finding rendering bottlenecks 35% Network Panel API timing issues 30% Console.assert Catching logic errors e...