在Go中将自定义类型转换为字符串

Question

In this bizarre example, someone has created a new type which is really just a string:

type CustomType string

const (
        Foobar CustomType = "somestring"
)

func SomeFunction() string {
        return Foobar
}

However, this code fails to compile:

cannot use Foobar (type CustomType) as type string in return argument

How would you fix SomeFunction so that it is able to return the string value of Foobar ("somestring") ?

Answer 1

Convert the value to a string:

func SomeFunction() string {
        return string(Foobar)
}