Skip to content

FirstErr

func FirstErr(errs ...error) error

FirstErr returns the first non-nil error from a list of errors. Returns nil if all errors are nil.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
package main

import (
    "errors"
    "fmt"

    exc "github.com/Goldziher/go-utils/excutils"
)

func main() {
    err1 := errors.New("first error")
    err2 := errors.New("second error")

    // Get first non-nil error
    err := exc.FirstErr(nil, nil, err1, err2)
    fmt.Println(err)  // first error

    // All nil
    err = exc.FirstErr(nil, nil, nil)
    fmt.Println(err)  // <nil>
}