Convert string to binary in Go

Question

How do you convert a string to its binary representation in Go?

Example:

Input: "A"

Output: "01000001"

In my testing, fmt.Sprintf("%b", 75) only works on integers.

Answer 1

Cast the 1-character string to a byte in order to get its numerical representation.

s := "A"
st := fmt.Sprintf("%08b", byte(s[0]))
fmt.Println(st)

Output:  "01000001"

(Bear in mind code "%b" (without number in between) causes leading zeros in output to be dropped.)