How Do I Convert a Custom Type to a String in Go?

Converting Custom Types to Strings in Go

In Go, programmers may occasionally encounter a scenario where they need to convert a custom type to a string. Consider the following bizarre example where a custom type is essentially just a string:

type CustomType string

const (
        Foobar CustomType = "somestring"
)

func SomeFunction() string {
        return Foobar
}

However, attempting to compile this code will result in an error: "cannot use Foobar (type CustomType) as type string in return argument."

To resolve this issue and allow SomeFunction to return the string value of Foobar, the custom type value must be explicitly converted to a string. This can be achieved using the string() conversion function:

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

By converting the Foobar value to a string, SomeFunction can now successfully return the desired string "somestring."

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