https://www.sitepoint.com/overview-javascript-promises/
origin - https://www.pipiscrew.com/2018/04/an-overview-of-javascript-promises/ an-overview-of-javascript-promises
https://www.sitepoint.com/overview-javascript-promises/
origin - https://www.pipiscrew.com/2018/04/an-overview-of-javascript-promises/ an-overview-of-javascript-promises