How to print boolean value in Go?

As we开发者_开发百科 have %d for int. What is the format specifier for boolean values?

If you use fmt package, you need %t format syntax, which will print true or false for boolean variables.

See package's reference for details.

%t is the answer for you.

package main
import "fmt"

func main() {
   s := true
   fmt.Printf("%t", s)
}

Use %t to format a boolean as true or false.

Some other options:

package main
import "strconv"

func main() {
   s := strconv.FormatBool(true)
   println(s == "true")
}

package main
import "fmt"

func main() {
   var s string
   // example 1
   s = fmt.Sprint(true)
   println(s == "true")
   // example 2
   s = fmt.Sprintf("%v", true)
   println(s == "true")
}

• https://golang.org/pkg/fmt#Sprint
• https://golang.org/pkg/fmt#Sprintf
• https://golang.org/pkg/strconv#FormatBool