typeSnippets.js

/**
 * MyNewType definition
 * @typedef {MyNewType} MyNewType
 * @param {number} first
 * @param {number} second
 * @property {function} logFirst
 * @property {function} logSecond
 * @returns MyNewType
 */

var MyNewType = module.exports = (first, second) => {
  /**
   * logs first argument
   * @typedef {number} logFirst
   * @param {number} times
   */
  function logFirst(times) {
      for (let i = 0; i < times; i++) {
          console.log(first);
      }
  }

  /**
   * logs second argument
   * @param {number} times
   */
  function logSecond(times) {
      for (let i = 0; i < times; i++) {
          console.log(second);
      }
  }

  return {
      logFirst,
      logSecond
  };
};


/**
 * @callback LoadingCallback
 * @param {number} status
 * @param {string=} response
 * @returns {void}
 */

/**
 * @param {string} url
 * @param {LoadingCallback} cb
 */
function loadData(url, cb) {
  const xhr = new XMLHttpRequest();
  xhr.open('GET', url)
  xhr.onload = () => {
    cb(xhr.status, xhr.responseText)
  }
}


/**
 * @typedef {object} BrowserHistory
 * @property {(route: string) => void} push
 */

/**
 * @param {BrowserHistory} history
 * @returns {(route: string) => void}
 */
const push = history => route => history.push(route);