Dispatch jobs across a pool of concurrent goroutine workers using buffered channels and sync.WaitGroup coordination.
Implement a token bucket request rate limiter in Go using time.Ticker and non-blocking channel selects.
Implement a concurrent worker pool pattern in Go using goroutines, buffered channels, and sync.WaitGroup to process tasks concurrently.
Reverse strings safely in Go by converting to []rune to handle multi-byte Unicode characters correctly without slicing bytes.