object-to-url.js

/**
 * URL encode an object.
 */
exports.encode = function encode(data) {
  var postData = [], value, property;

  for(property in data) {
    if (Object.prototype.hasOwnProperty.call(data, property)) {
      value = ((typeof data[property] === "undefined") && "undefined" ||
              (data[property] === null) && "null" ||
              data[property].toString());

      postData.push(encodeURIComponent(property).replace(/%20/g, "+") +
                         "=" + encodeURIComponent(value).replace(/%20/g, "+"));
    }
  }
  return postData.join("&");
};