Javascript attach an onclick event to all links

Question

I want to attach a function on every link on the site to change a parameter.

How can I do this without jQuery?

How do I traverse every link (it might be a DO

Answer 1

function linkClickHandler(a) {
  console.log(a.host);
}

var links = document.getElementsByTagName('a');
for (var i = 0; i < links.length; i++) links[i].onclick = function() {
    linkClickHandler(links[i]);
}