How Can I Write Idiomatic Error Handling Code in Go?

Idiomatic Error Handling in Go

As a novice Go programmer, you may encounter frequent error handling statements like:

if err != nil {
  //handle err
}

or

if err := rows.Scan(&some_column); err != nil {
  //handle err
}

While these patterns are appropriate within the context of Go's error handling mechanisms, it's essential to explore potential idioms and best practices that can enhance your error handling efficacy.

The provided code examples align with the idiomatic approach adopted in Go. The placement of error handling checks directly after the error-prone operation allows for swift error processing. In the second example, using the short-variable declaration operator (err :=) within the conditional statement concisely assigns the error value to the err variable.

While it's possible to advocate for alternative methods, the style demonstrated in the examples closely mirrors the conventions employed in Go's standard libraries. This consensus among Go developers suggests that the presented approach is both effective and widely accepted.

The above is the detailed content of How Can I Write Idiomatic Error Handling Code in Go?. For more information, please follow other related articles on the PHP Chinese website!