Measuring mutex, channel and waitGroup efficiency operate concurrency getText no getTextWithChannel sure getTextWithWaitGroup sure getTextWithMutex sure Supply code: bundle primary import ( “fmt” “sync” “time” ) func getText() string { i := “hello” func() { i = “howdy” }() return i } func getTextWithWaitGroup() string { t := “hello” var waitgroup sync.WaitGroup waitgroup.Add(1) go func()…

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