Millie K Advanced Golang Programming 2024 -

Error handling is essential in Go. Always check errors and handle them accordingly. Use errors.New() to create custom errors and fmt.Errorf() to wrap errors. Consider using a library like pkg/errors for more advanced error handling.

ctx := context.Background() Use ctx.WithCancel() or ctx.WithTimeout() to create a cancellable context. Don't forget to call cancel() when you're done.

Go modules are a crucial aspect of modern Go development. Introduced in Go 1.11, modules allow you to manage dependencies and create reproducible builds. To create a new module, run: