How to handle multiple errors in go?

Question

What is the most idiomatic way to handle multiple errors in go? Should I try to wrap the error and return both? if err := foo(bar, obj); err != nil { // how to do I avoid losing this error? err := l.fixup(obj) if err != nil { // but this error is the not the one from foo? } return err } return l.fixup(obj) JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You can add a context to your original error using Wrap function from this great package from Dave Cheney https://github.com/pkg/errors errors.Wrap function returns a new error that adds context to the original error. func Wrap(cause error, message string) error in your case this would be: if cause := foo(bar, obj); cause != nil { err := l.fixup(obj) if err != nil { return errors.Wrap(cause, err.Error()) } return cause } return l.fixup(obj)