Trying to use a const in a program, but having problems trying to have user input fields "address, tx_hash, vout, scriptpubKey". The users will have to manually fill out the fields. Please help. Here is a code snippet:

  <script> 

var userPrivateKey = 'L1dJbaNK9agysJ1E8YNWgfKE...';
var userAddress = '1EmP88KocDDR1tgFVGPW3VHf2ZFYPuNq47';


//



const utxo = new bsv.Transaction.UnspentOutput({
  "address": userAddress,
  "txid": "44a278f0446fe988fe7b5f43dcbf6d38b2b175e2ae8fdf821fc4fe86468a1aaa",
  "vout": 4,
  "satoshis": 187243,
  "scriptPubKey": "76a91496fe679d81a9e419216f1426d861cd0de0376ca288ac",
});

The const (utxo) will be used in another function.