JSFiddle - React, Tailwind, and code Playground

JavaScript

var x = "http://example.com/?Germany&France&Norway&Sweden";

function noValParams(url) {
  var noValue = [];
  var qp = x.split("?")[1];
  [].forEach.call(qp.split("&"), function (inst) {
    if (inst.indexOf("=") == -1 || inst.indexOf("=") == inst.length - 1) {
      noValue.push(inst);
    }
  });
  return noValue;
}
                  
console.log(noValParams(x));