How do you ignore the String() method when printing a golang struct?

Question

I have a golang struct, and have created a String() method for use in the program's normal operation. I now want to see the whole contents of the struct. I tried the usual %+v format but it seems to use the String() method instead of showing me all the fields. How can I output the raw structure data?

Example: https://play.golang.org/p/SxTVOtwVV-9

package main

import (
    "fmt"
)

type Foo struct {
    Jekyl string
    Hyde  string
}

func (foo Foo) String() string {
    return foo.Jekyl // how I want it to show in the rest of the program
}

func main() {
    bar := Foo{Jekyl: "good", Hyde: "evil"}
    fmt.Printf("%+v", bar) // debugging to see what's going on, can't see the evil side
}

Outputs

good

But I want to see what you get without the String() method implemented

{Jekyl:good Hyde:evil}

Answer 1

Use the %#v format

fmt.Printf("%#v", bar)

Outputs:

main.Foo{Jekyl:"good", Hyde:"evil"}

ref https://stackoverflow.com/a/26116578/10245

https://play.golang.org/p/YWIf6zGU-En