why-callbacks-0.js

var http = require('http');
var fs = require('fs');
var contents = "";

// get data from GET request
// write data to hard drive
// log data to console

http.get('http://www.azlyrics.com/lyrics/mya/caseoftheexwhatchagonnado.html', function(response){

  response.on('data', function(chunk) {
    contents += chunk;
  });

  response.on('end', function(){
    fs.writeFile('./contents.html', contents);
  });
});

console.log("contents:", contents);