console.log( "a" );
setTimeout(function() {
  console.log( "c" )
}, 500 );
setTimeout(function() {
  console.log( "d" )
}, 500 );
setTimeout(function() {
  console.log( "e" )
}, 500 );
console.log( "b" );

var data;
$.ajax({
  url: "some/url/1",
  success: function( data ) {
    // But, this will!
    console.log( data );
  }
})
// Oops, this won't work...
console.log( data );

xmlhttp.open( "GET", "some/ur/1", true );
xmlhttp.onreadystatechange = function( data ) {
  if ( xmlhttp.readyState === 4 ) {
    console.log( data );
  }
};
xmlhttp.send( null );

var fs = require( "fs" );
fs.exists( "index.js", function() {
  fs.readFile( "index.js", "utf8", function( err, contents ) {
    contents = someFunction( contents ); // do something with contents
    fs.writeFile( "index.js", "utf8", function() {
      console.log( "whew! Done finally..." );
    });
  });
});
console.log( "executing..." );

GMaps.geocode({
  address: fromAddress,
  callback: function( results, status ) {
    if ( status == "OK" ) {
      fromLatLng = results[0].geometry.location;
      GMaps.geocode({
        address: toAddress,
        callback: function( results, status ) {
          if ( status == "OK" ) {
            toLatLng = results[0].geometry.location;
            map.getRoutes({
              origin: [ fromLatLng.lat(), fromLatLng.lng() ],
              destination: [ toLatLng.lat(), toLatLng.lng() ],
              travelMode: "driving",
              unitSystem: "imperial",
              callback: function( e ){
                console.log( "ANNNND FINALLY here's the directions..." );
                // do something with e
              }
            });
          }
        }
      });
    }
  }
});

var fromLatLng, toLatLng;
var routeDone = function( e ){
  console.log( "ANNNND FINALLY here's the directions..." );
  // do something with e
};
var toAddressDone = function( results, status ) {
  if ( status == "OK" ) {
    toLatLng = results[0].geometry.location;
    map.getRoutes({
      origin: [ fromLatLng.lat(), fromLatLng.lng() ],
      destination: [ toLatLng.lat(), toLatLng.lng() ],
      travelMode: "driving",
      unitSystem: "imperial",
      callback: routeDone
    });
  }
};
var fromAddressDone = function( results, status ) {
  if ( status == "OK" ) {
    fromLatLng = results[0].geometry.location;
    GMaps.geocode({
      address: toAddress,
      callback: toAddressDone
    });
  }
};
GMaps.geocode({
  address: fromAddress,
  callback: fromAddressDone
});

async.parallel([
  function( done ) {
    GMaps.geocode({
      address: toAddress,
      callback: function( result ) {
        done( null, result );
      }
    });
  },
  function( done ) {
    GMaps.geocode({
      address: fromAddress,
      callback: function( result ) {
        done( null, result );
      }
    });
  }
], function( errors, results ) {
  getRoute( results[0], results[1] );
});

var geocode = function( address ) {
  var dfd = new $.Deferred();
  GMaps.geocode({
    address: address,
    callback: function( response, status ) {
      return dfd.resolve( response );
    }
  });
  return dfd.promise();
};
var getRoute = function( fromLatLng, toLatLng ) {
  var dfd = new $.Deferred();
  map.getRoutes({
    origin: [ fromLatLng.lat(), fromLatLng.lng() ],
    destination: [ toLatLng.lat(), toLatLng.lng() ],
    travelMode: "driving",
    unitSystem: "imperial",
    callback: function( e ) {
      return dfd.resolve( e );
    }
  });
  return dfd.promise();
};
var doSomethingCoolWithDirections = function( route ) {
  // do something with route
};
$.when( geocode( fromAddress ), geocode( toAddress ) ).
  then(function( fromLatLng, toLatLng ) {
    getRoute( fromLatLng, toLatLng ).then( doSomethingCoolWithDirections );
  });

var SomeModel = Backbone.Model.extend({
  url: "/someurl"
});
var SomeView = Backbone.View.extend({
  initialize: function() {
    this.model.on( "reset", this.render, this );
    this.model.fetch();
  },
  render: function( data ) {
    // do something with data
  }
});
var view = new SomeView({
  model: new SomeModel()
});

var doSomethingCoolWithDirections = function( route ) {
  postal.channel( "ui" ).publish( "directions.done", {
    route: route
  });
};

var UI = function() {
  this.channel = postal.channel( "ui" );
  this.channel.subscribe( "directions.done", this.updateDirections ).withContext( this );
};
UI.prototype.updateDirections = function( data ) {
  // The route is available on data.route, now just update the UI
};
app.ui = new UI();