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How to Wait for Multiple Goroutines in Go

  • In Go, the main goroutine often needs to wait for other goroutines to finish their tasks before continuing execution or exiting the program.
  • sync.WaitGroup is commonly used for waiting for a group of goroutines to finish tasks.
  • Example code demonstrates using sync.WaitGroup to synchronize multiple goroutines.
  • Channels can be used for passing signals between goroutines to coordinate their execution.
  • Context allows graceful control of goroutine exits and is useful for scenarios requiring cancellation or timeouts.
  • errgroup is recommended as it combines WaitGroup functionality with error handling for waiting for tasks and handling errors.
  • Using sync.WaitGroup is simple and efficient, but errgroup is more elegant and supports error propagation.
  • time.Sleep is not recommended for waiting on tasks to finish as it lacks accurate synchronization compared to sync tools.
  • Choose the synchronization method based on specific requirements such as error handling, cancellation, or number of tasks.
  • Leapcell offers a serverless hosting platform for Go projects with multi-language support, cost efficiency, and scalability.

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