Question

How to convert string to byte array in Go

Answer 1

package main

import "fmt"

func main() {
    str := "Go Lang"
    
    byteArray := []byte(str)
    
    fmt.Println(byteArray)
}



/*
run:

[71 111 32 76 97 110 103]

*/

 

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Answer 2

package main

import "fmt"

func main() {
    str := "Go Lang"
    
    byteArray := make([]byte, len(str))
    copy(byteArray, str)
    
    fmt.Println(byteArray)
}



/*
run:

[71 111 32 76 97 110 103]

*/

 

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Answer 3

package main

import (
    "fmt"
    "io"
    "strings"
)

func main() {
    str := "Go Lang"
    
    reader := strings.NewReader(str)
    byteArray := make([]byte, len(str))
    _, err := io.ReadFull(reader, byteArray)
    if err != nil {
        fmt.Println("Error:", err)
    }
    
    fmt.Println(byteArray)
}



/*
run:

[71 111 32 76 97 110 103]

*/

 

70+ SQL courses for beginners and professionals