[]byte to string raises an error. string([]byte[:n]) raises an error too. By the way, for example, sha1 value to string for filename. Does it need utf-8 or any other encoding set explicitly? Thanks!
7 Answers
The easiest method I use to convert byte to string is:
myString := string(myBytes[:]) The easiest way to convert []byte to string in Go:
myString := string(myBytes) Note: to convert a "sha1 value to string" like you're asking, it needs to be encoded first, since a hash is binary. The traditional encoding for SHA hashes is hex (import "encoding/hex"):
myString := hex.EncodeToString(sha1bytes) In Go you convert a byte array (utf-8) to a string by doing string(bytes) so in your example, it should be string(byte[:n]) assuming byte is a slice of bytes.
I am not sure that i understand question correctly, but may be:
var ab20 [20]byte = sha1.Sum([]byte("filename.txt")) var sx16 string = fmt.Sprintf("%x", ab20) fmt.Print(sx16) ToBe := [6]byte{65, 66, 67, 226, 130, 172} s:=ToBe[:3] // this will work fmt.Printf("%s",string(s)) // this will not fmt.Printf("%s",string(ToBe)) Difference : ToBe is an array whereas s is a slice.
First you're getting all these negatives reviews because you didn't provided any code. Second, without a good example. This is what i'd do
var Buf bytes.Buffer Buf.Write([]byte) myString := Buf.String() Buf.Reset() // Reset the buffer to reuse later or better yet
myString := string(someByteArray[:n]) see here also see @JimB's comment
That being said if you help that targets your program, please provide and example of what you've tried, the expect results, and error.
1We can just guess what is wrong with your code because no meaningful example is provided. But first what I see that string([]byte[:n]) is not valid at all. []byte[:n] is not a valid expression because no memory allocated for the array. Since byte array could be converted to string directly I assume that you have just a syntax error.
Shortest valid is fmt.Println(string([]byte{'g', 'o'}))
