A skeleton for building Google Analytics plugins with correct tracker names

GA Plugin Demo

// Provides a plugin name and constructor function to analytics.js. This
// function works even if the site has customized the ga global identifier.
function providePlugin(pluginName, pluginConstructor) {
  var ga = window[window['GoogleAnalyticsObject'] || 'ga'];
  if (ga) ga('provide', pluginName, pluginConstructor);
}

// Plugin constructor.
// All plugin functionality takes place inside the function .
function Demo(tracker, config) {
  // Sanity check to write tracker name to console.
  console.log("Loaded trackomatic on tracker " + tracker.get('name') + " with the config object " + JSON.stringify(config));
  // Sample event call below. Uncomment to run.
  //tracker.send('event', 'category', 'action', 'label', 0, { 'nonInteraction': 1 });
}

// Register the plugin.
providePlugin('demo', Demo);

// run the above code in console, then run ga('require', 'demo');
// to run this for a specific tracker, run ga('[trackername].require', 'demo'); where [trackername] is the name of your tracker
// (default is "t0")
// Normally, plugin js should be loaded after GA