Passing field values with ampersand or # sign over query string

[JMR21]

I am passing field values to an html datapage hosted on my website to create an invoice.  Anytime there was a "#" included in an address, it would stop all the information following that point.  I have incorporated the code from above and it does pass it on, but now I am getting "%20" anywhere there should be a space and "%23" where the # is included.   Below is my code that I created from the examples on another help forum here.  Do you see where I am creating this problem?  I'm hoping it's something obvious!

<a href="#" id="link-1">VIEW INVOICE</a> <script>
// DO NOT TOUCH FROM THIS POINT
var params = []; 
addParameter = function(qs, val){
  params.push(`${qs}=${encodeURIComponent(val)}`);
}
//UP TO THIS POINT

var link_id = "link-1";
var base_url = "https://janetrippe.com/invoice.html";
addParameter('fn', '[@field:FirstName]'); 
addParameter('ln', '[@field:LastName]');
addParameter('frn', '[@field:FarmRanchName]');
addParameter('ad1', '[@field:MailingAddress]');
addParameter('City', '[@field:City]');
addParameter('State', '[@field:State]');
addParameter('Zip', '[@field:Zip]');
addParameter('Phone1', '[@field:Phone1]');
addParameter('Phone1C', '[@field:Phone1Contact]');
addParameter('Phone2', '[@field:Phone2]');
addParameter('Phone2C', '[@field:Phone2Contact]');
addParameter('DA', '[@field:DeliveryAddress]');
addParameter('DC', '[@field:DeliveryDateComments]');
addParameter('DD', '[@field:BullDeliveryDate]');
addParameter('AAA', '[@field:AAAMemberCode]');
addParameter('Bid', '[@field:BuyerID]');
addParameter('TN', '[@field:TransferName]');
addParameter('Code', '[@field:AIMSid#]');

// DO NOT TOUCH FROM THIS POINT
var queryString = params.join("&");
document.querySelector(`#${link_id}`).href = `${base_url}?${params.join("&")}`
//UP TO THIS POINT

</script>

Here is a sample of what it is pulling; I have a # sign in the address as '4800 #1 Black Horse Pike'; it actually changed the # sign to %23 and the spaces to %20

Thanks so much for your help!!

[Vitalikssssss]

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