Generate random urls with predefined query information.

package.json

{
  "name":"rand-url-create",
  "version":"0.0.1",
  "description":"Random URL Generator URI encoded param",
  "license":"Creative Commons Zero v1.0 Universal",
  "author":"C. Dek. chrdek - github"
}

rand-url-create.js

//Function for generating urls (with encoded url qstrings).
//gist: installs only avail. via NPM > v3
module.exports = function createRandURL(obj, url=true) {
  var siteName="";
  if (obj===null || typeof obj =='undefined') return `${siteName}`;
  var protopart = [..."http://,https://".split(',')][(~~(Math.random()+"").substr(-4)%2)];
  var prefix = [...["www.",""]][[...Number((Math.random()+"").substr(2,6)).toString(2)].pop()];
  var qstrpart = "?"+Object.entries(obj).map(k=>typeof k[1]===typeof[]?k[1].map(e=>`${k[0]}=${encodeURIComponent(e)}`):`${k[0]}=${encodeURIComponent(k[1])}`).join("&").replace(/(\,)+/g,"&");
  var tldar = ["com", "co.uk", "pl", "cn", "cz", "io", "ru", "net", "nl", "es", "eu", "ro", "ac.uk", "org", "edu", "gov", "br"];
  var tldselectedpart = tldar[Number((Math.random()+"").substr(2,15).match(/[0-9]{2}/g).filter(e=>e<=tldar.length).pop())];
  
  var routepart = `/${(~new(Date)).toString(36).substr(-3)}/${(~new(Date)).toString(36).substr(-5)}`;
  
  //Only alphanumeric characters (in lowercase)
  var rndStringSet1 = [..."abdecfrtghyunji76kolpmwq9012zsx3485"].map(c=> Math.random().toString(36).substr(2));
  //Alphanumeric - with dashes in between characters..
  var rndStringSet2 = `${(~new(Date)).toString(36)}-${(new Date%9e29).toString(36)}`;
  
  //Use characters from set 1, or set 2 for website name creation..
  switch (url){
    case true: siteName = rndStringSet1.join``.substring(0,25);
     break;
    case false: siteName = rndStringSet2;
     break;
    default:
     break;
  }
  return `${protopart}${prefix}${siteName}.${(tldselectedpart)?tldselectedpart:tldar[tldar.length-1]}${routepart}${qstrpart}`;
}

//SAMPLE USE CASES:
//
// Example 1 (No querystring parameters, string set 1)
// createRandURL({},true)
// Output 1 "https://www.og5cgmtoaief2qylvepnbphdb.br/bxr/dobxr?"
//
// Example 2 (Including querystring parameters with URI encoded chars, string set 2)
// createRandURL({a:[3,5,2],b:'dd',c:'ds&@#'},false)
// Output 2 "https://www.4dlgbh-jq6qyasi.ro/gbh/dlgbh?a=3&a=5&a=2&b=dd&c=ds%26%40%23"
//
// Example 3 (Default usage, string set 1, no params.)
// createRandURL({})
// Output 3 "http://2iorvr6hbccvn002sffig4ei6.co.uk/v7w/dfv7w?"
//
// Example 4 (calling createRandURL with no arguments/null returns "")
// createRandURL(); createRandURL(null)
// Output 4 ""
//
// Other cases:
// createRandURL({a:'p'})
// "http://www.8en8cabl1tw0b3b8h07ucn6n9.co.uk/det/cxdet?a=p"
// createRandURL({a:'p'},false)
// "https://4cxa4h-jq6rmgzi.cz/a4h/cxa4h?a=p"