Chapter Takeaways

• Goroutines are lightweight threads managed by the Go runtime
• Channels provide safe communication between goroutines
• Use select for non-blocking operations and timeouts
• Prefer channels for communication; use sync package for synchronization
• context.Context enables cancellation and timeout propagation
• ErrGroup simplifies coordinating multiple goroutines with error handling
• Always close channels to signal completion and prevent deadlocks
• Use the race detector (go test -race) to find data races

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