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How to extract the hostname portion of a URL in JavaScript?

To extract the hostname portion of a URL, use the hostname method

Example

Live Demo

<!DOCTYPE html>
<html>
   <body>
      <script>
         var url = new URL("https://example.com/asdf/asdf/sadf.aspx?blah");
         document.write(url.hostname);
      </script>
   </body>
</html>