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The Way to Go

Suggestions and Considerations

Explore practical suggestions to improve Go application performance by optimizing string handling, struct usage, slices, maps, and memory management. Understand common pitfalls such as memory leaks from goroutines and persistent data structures. Learn techniques like caching and pointer receivers to write efficient Go programs.

We'll cover the following...

General

Stopping a program in case of error

if err != nil {
  fmt.Printf("Program stopping with error %v", err)
  os.Exit(1)
}

or:

if err != nil {
  panic("ERROR occurred: " + err.Error())
}

Performance best practices and advice

  • Use []rune, if possible, instead of strings.
  • Use slices instead of
...