Asynchronous Script Loading Callback

by

Thanks RASG for https://stackoverflow.com/a/3211647/982924

Async function with callback:

function async(u, c) {
  var d = document, t="script",
      o = d.createElement(t),
      s = d.getElementsByTagName(t)[0];
  o.src="https://" + u;
  if (c) { o.addEventListener('load', function (e) { c(null, e); }, false); }
  s.parentNode.insertBefore(o, s);
}

Usage:

async('snapabug.appspot.com/snapabug.js', function() {
    SnapABug.init('XXXXX-XXXXX-XXXXX-XXXXX-XXXXX');
});

jsFiddle

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