// First, load the widgets.js file asynchronously

window.twttr = (function(d, s, id) {

  var js, fjs = d.getElementsByTagName(s)[0],

    t = window.twttr || {};

  if (d.getElementById(id)) return;

  js = d.createElement(s);

  js.id = id;

  js.src = "https://platform.twitter.com/widgets.js";

  fjs.parentNode.insertBefore(js, fjs);

  t._e = [];

  t.ready = function(f) {

    t._e.push(f);

  };

  return t;

}(document, "script", "twitter-wjs"));

​

function tweetIntentToAnalytics (intentEvent) {

  if (!intentEvent) return;

  var label = "tweet";

  console.log("Intent " , intentEvent);

}

// Wait for the asynchronous resources to load

twttr.ready(function (twttr) {

  twttr.events.bind('tweet', tweetIntentToAnalytics);

});