fruitstand/examples/nodejs-mongodb-angularjs-web-development/ch06/writing/file_write_async.js

fruit stand

var fs = require('fs');
var fruitBowl = ['apple', 'orange', 'banana', 'grapes'];
function writeFruit(fd){
  if (fruitBowl.length){
    var fruit = fruitBowl.pop() + " ";
    fs.write(fd, fruit, null, null, function(err, bytes){
      if (err){
        console.log("File Write Failed.");
      } else {
        console.log("Wrote: %s %dbytes", fruit, bytes);
        writeFruit(fd);
      }
    });
  } else {
    fs.close(fd);
  }
}
fs.open('../data/fruit.txt', 'w', function(err, fd){
  writeFruit(fd);
});