sleep.js

sleep.js

/**
 * sleep(1000).then(function () { console.log('zzZZzzZZ...'); });
 *
 * @author gsamaras <https://stackoverflow.com/a/951057/594940>
 * @param {Integer} ms
 * @returns {Promise}
 */
window.sleep = function sleep(ms) {
  return (
    new Promise(function (resolve, reject) {
      setTimeout(function () {
        resolve();
      }, ms);
    })
  );
}