util-ref

// https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/digest#converting_a_digest_to_a_hex_string

/*
    Open a new browser tab or window and paste the following in your developer console (CTRL + SHIFT + I)

    (You may need to type "allow pasting", as indicated by your browser)
*/

const text =
  "An obscure body in the S-K System, your majesty. The inhabitants refer to it as the planet Earth.";

async function digestMessage(message) {
  const msgUint8 = new TextEncoder().encode(message); // encode as (utf-8) Uint8Array
  const hashBuffer = await crypto.subtle.digest("SHA-256", msgUint8); // hash the message
  const hashArray = Array.from(new Uint8Array(hashBuffer)); // convert buffer to byte array
  const hashHex = hashArray
    .map((b) => b.toString(16).padStart(2, "0"))
    .join(""); // convert bytes to hex string
  return hashHex;
}

/*
    Get the sha256 hash for any string, in this case the string assigned to the text variable
*/

const result = await digestMessage(text);

/*
    The result is "6efd383745a964768989b9df420811abc6e5873f874fc22a76fe9258e020c2e1"

    Repeat this with any other string
*/