Noir u2b contains helpers functions for converting unsigned integers to [u8] arrays of appropriate size

In your Nargo.toml file, add the following dependency:

[dependencies]
u2b = { tag = "v0.3.0", git = "https://github.com/colinnielsen/noir-u2b" }

Conversion functions are available for all unsigned integer types u(8-128). They can be used as follows:

use dep::u2b;

fn main(){
    let num: u16 = 256;

    let num_arr = u64_to_u8(num);

    ...

    let num: u64 = 123451224112;

    let num_arr: [u8; 8] = u64_to_u8(num);
}

This project is licensed under the MIT License. See the LICENSE file for details.