links

var links = [
  'https://img5.downloadha.com/hosein/Animation/April%202014/PAW%20Patrol%20S01E01-20%20720p%20WebRip%20%28www.Downloadha.com%29.part1.rar',
  'https://img5.downloadha.com/hosein/Animation/April%202014/PAW%20Patrol%20S01E01-20%20720p%20WebRip%20%28www.Downloadha.com%29.part2.rar',
  'https://img5.downloadha.com/hosein/Animation/April%202014/PAW%20Patrol%20S01E01-20%20720p%20WebRip%20%28www.Downloadha.com%29.part3.rar',
  'https://img5.downloadha.com/hosein/Animation/April%202014/PAW%20Patrol%20S01E01-20%20720p%20WebRip%20%28www.Downloadha.com%29.part4.rar',
  'https://img5.downloadha.com/hosein/Animation/April%202014/PAW%20Patrol%20S01E01-20%20720p%20WebRip%20%28www.Downloadha.com%29.part5.rar'

];

function downloadAll(urls) {
  var link = document.createElement('a');

  link.setAttribute('download', null);
  link.style.display = 'none';

  document.body.appendChild(link);

  for (var i = 0; i < urls.length; i++) {
    link.setAttribute('href', urls[i]);
    link.click();
  }

  document.body.removeChild(link);
}

<button onclick="downloadAll(window.links)">Test me!</button>