JSFiddle - React, Tailwind, and code Playground
JavaScript
function myfunction(myvar){
var urls = myvar;
var myurls = urls.split("?id=");
var mylasturls = myurls[1];
var mynexturls = mylasturls.split("&");
var url = mynexturls[0];
alert(url)
}
//myfunction(window.top.location.href);
myfunction("http://www.myname.com/index.html?id=dance&emp;cid=in_social_facebook-hhp-food-moonlight-influencer_s7_20160623");