I Want do a click to an existing <a href="">
Code :
var els = document.getElementsByTagName("a");
for (var i = 0, l = els.length; i < l; i++) {
var el = els[i];
if (el.href === 'https://www.messenger.com/t/someperson') {
el.click;
}
}
clickas a function:el.click(). MDN