Wrapping functions

gistfile1.js

function before(fn) {
  var ret = null;
  return function() {
    try {
      ret = fn.apply(this, arguments);
    } catch(e) {
      console.error(e);
    }
    return ret;
  };
}

Object.keys(WatchDog).forEach(function(key) {
  if (typeof WatchDog[key] == 'function')
    WatchDog[key] = before(WatchDog[key]);
});