Backplane ready callback

backplane_ready.js

(function() {
  if (typeof window.Backplane !== 'function' || parseInt(Backplane.version) !== 2)
    return;

  /**
   * Callback function to be executed on BP ready
   */
  function bp_ready_callback() {
    // Code to be executed on BP ready
  }

  // Pass in function from above
  Backplane(bp_ready_callback);
})();