Http url builder for creating get request params.

HttpUrlBuilder.js

function HttpUrlBuilder(url) {
  if (typeof url !== "string") {
    throw new TypeError();
  }
  
  this.url = url;
  this.cleanUrl();
}

HttpUrlBuilder.prototype.cleanUrl = function() {
  var endOfUrl = this.url.match(/\/$/g);
  
  if (endOfUrl === null) {
    this.url += "?";
    
    return this;
  }
  
  this.url = this.url.replace(/\/$/g, "?");

  return this;
};

HttpUrlBuilder.prototype.build = function(data) {
  var params = data || {},
      $this = this;
    
  
  Object.keys(params).map(function(key, index) {
    if (index === 0) {
      $this.url += key + '=' + encodeURI(params[key]);
    } else {
      $this.url += '&' + key + '=' + encodeURI(params[key]);      
    }
  });
  
  return this.url;
};