My problem is that I've a large number of data (Over 50k), and I've to map it with DOM with the help of vanilla javascript (ES). Sometimes pages gets crashed while data is loading. What should I choose async/await or promises? Also which method would be better either XHR or Fetch method. Or I should use some third party library? That is big problem for me because sometimes it shows the data after an interval but sometimes pages is crashed. Can anyone explain here?