JSFiddle - React, Tailwind, and code Playground
HTML
<a href="http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Snowboarder_in_flight_%28Tannheim%2C_Austria%29.jpg/800px-Snowboarder_in_flight_%28Tannheim%2C_Austria%29.jpg" download>Download 1</a>
<a href="http://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Palaeoparadoxiadae.jpg/786px-Palaeoparadoxiadae.jpg" download>Download 2</a>
JavaScript
var links = document.getElementsByTagName('a');
for(var i=0;i<links.length; i++) {
makeClick(links[i]);
}
function makeClick(element) {
var evt = element.ownerDocument.createEvent('MouseEvents');
evt.initMouseEvent('click', true, true,
element.ownerDocument.defaultView, 1, 0, 0, 0, 0, false,
false, false, false, 1, null);
element.dispatchEvent(evt);
}