Convert a string to a byte array and then encode with Base64. Useful for putting complex data structures in XML.

StringToBytesToBase64.js

const convertToBytes = (str) => {
  return new TextEncoder('utf-8').encode(str);
};

const dataString = 'TT12345,1:49:52 PM,10/15/13';

// ODQsODQsNDksNTAsNTEsNTIsNTMsNDQsNDksNTgsNTIsNTcsNTgsNTMsNTAsMzIsODAsNzcsNDQsNDksNDgsNDcsNDksNTMsNDcsNDksNTE=
btoa(convertToBytes(dataString));