Hex

@std/hex is a hybrid package: its public functions are written in Nubo and its conversion operations are implemented in Go.

import hex from "@std/hex"

let encoded = hex.encode("hello")
println(encoded)
println(hex.decode(encoded))

This prints 68656c6c6f and then hello.

Function	Returns	Meaning
encode(value: string)	string	Encode the string’s bytes as lowercase hexadecimal.
decode(value: string)	string	Decode hexadecimal bytes into a string.

Invalid hexadecimal input raises a catchable error:

import hex from "@std/hex"

catch err {
    println(hex.decode("not-hex"))
}

if !isNil(err) {
    println(err.message)
}

See Hybrid packages to build a similar module in your Go app.