NodeSeriesPart1_3.js

// non-blocking / async code:
var fs = require('fs');

console.log('ALERT: Escape from bunny prison!');
// notice the method is called readFile not readFileSync.
fs.readFile('wishlist.html', function(err, wishlist) {
	if(err) throw err;
	console.log(wishlist.toString());
})
console.log('ALERT: Pounce owner!');
console.log('ALERT: Savagely devour rasberries!');

/* EXTRA: This method adds something new to your wishlist.html file.
Run 'node bunnyAsync.js' and see for yourself. Notice I leave this
method in blocking format otherwise, if I left in as appendFile (the
async version), the fs.readFile reads the wishlist.html file async and
then all the ALERT's print before the appendFile method is done
processing. Thus you won't see the change taking place until you call
'node bunnyAsync.js' in your terminal again.
*/
fs.appendFileSync('wishlist.html', '6. Shout "Happy with Async!!"', 'utf8');