Golang print string as an array of bytes

Question

What's the fmt code for printing a string as an array of bytes?

If I have a marshaled json object, I can print bytes like so:

type Fakejs struct {
    Fake string `json:"fake"`
}

fjs := Fakejs {Fake:"abc"}
mjs, err := json.Marshal(fjs)
fmt.Println(mjs)

Produces

[123 34 102 97 107 101 34 58 34 97 98 99 34 125]

Which is what I want. However, with a regular string, I try this:

mystr := "{\"fake\":\"abc\"}"
fmt.Printf("mystr:\t %x \n", []byte(mystr))

And this produces:

7b2266616b65223a22616263227d

Which is not what I want. What is the "%x"-like format code that will printf the string as an array of bytes.

%v prints the raw value in its default format: play.golang.org/p/W5F_BeOgX_g — Adrian
– Adrian, Commented May 2, 2019 at 20:46

Mittenchops · Accepted Answer · 2019-05-04 19:30:02Z

16

package main

import (
    "fmt"
)

func main() {
    mystr := "{\"fake\":\"abc\"}"
    fmt.Printf("mystr:\t %v \n", []byte(mystr))
}

prints

mystr:   [123 34 102 97 107 101 34 58 34 97 98 99 34 125]

Mittenchops

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answered May 2, 2019 at 23:29

mhb

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