javascript window.location code explanation

Question

Can someone explain to me this code snippet?

 <button id="btn6"  href="javascript: void(0)" onclick="function1()" type="submit">Get Link</button>
    <script>
        function function1() {
        var Link = 'https://google.com';
          var referr = '';
        {       
                window.location = Link+''+referr;
            } 
        }
    </script>

I want to find the complete URL(with parameters) that is sent to the browser when clicking the button

Answer 1

As Andy said, there is a lot of issues with your code but once you fix it, use the URL object that is provided in modern browsers and the searchParams function :

    var url = "https://google.com/test.html?a=1&b=test-param-sample-123"; //for exemple
    var url = new URL(url);
    var b = url.searchParams.get("b");
    console.log(b);                    //return the b parameter "test-param-sample-123"

I let you check this article for more informations