Common Pitfalls and Solutions

This module summarizes common traps and misconceptions in Go development, compares them with JavaScript, and helps you avoid common problems to improve code quality.

1. Concurrency Programming Pitfalls

Deadlock

Solutions

• Go: Use buffered channels or select to avoid no receiver
• JS: Use Promise/async properly to avoid callback nesting

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Race Conditions

Solutions

• Go: Use sync.Mutex or atomic operations
• JS: Single-threaded avoids most race conditions

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2. Memory Leak Issues

Solutions

• Go: Close channels timely to avoid goroutine leaks
• JS: Pay attention to closures and event listener unbinding

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3. Performance Optimization Misconceptions

• Premature optimization leading to complex code
• Overuse of reflection and interface affecting performance
• Ignoring memory allocation and GC

Best Practices

• Ensure correctness first, then optimize performance
• Use pprof to analyze performance bottlenecks
• Use types and data structures appropriately

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4. Error Handling Pitfalls

Solutions

• Go: Handle each error explicitly, avoid ignoring
• JS: Use try-catch properly, pay attention to async errors

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5. Package Management Issues

• Go: go.mod/go.sum out of sync, dependency conflicts
• JS: node_modules conflicts, lock file inconsistencies

Best Practices

• Go: Use go mod tidy to keep dependencies clean
• JS: Lock dependency versions, clean up regularly

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It's recommended to practice with real projects and consult official documentation and community experience when encountering problems.