shaikh-shahid

"use strict";
var fs = require('fs');
var co = require('co');

co(function* () {
  var file1 = yield readFile('demo.js');
  console.log(file1);
  console.log("I am after file read even though its Async");
});

shaikh-shahid

var fs = require("fs");

fs.readFile('async.js','utf8',fileContent);

function fileContent(err,data) {
  if(!err) {
     console.log(data);
  }
}

shaikh-shahid

var fs = require("fs");
fs.readFile('async.js','utf8',function(err,data){
    if(!err) {
       console.log(data);
    }
});

shaikh-shahid

var fs = require("fs");
var db = require('somedbfile.js');
var sendEmail = require('someEmail.js');
fs.readFile('async.js','utf8',function(err,data){
    if(!err) {
       console.log(data);
    }
    db.executeQuery('SELECT * FROM test',function(err,rows) {
      if(!err) {
        console.log("Error",err);

shaikh-shahid

var fs = require("fs");
fs.readFile('async.js','utf8',function(err,data){
    if(!err) {
       console.log(data);
    }
});
console.log("something else");

shaikh-shahid

var fs = require("fs");
var fileContent = fs.readFileSync('sync.js','utf8');
console.log(fileContent);
console.log("something else");

//Output
//Same code content
//something else

shaikh-shahid

[  
   {  
      "name":"The 40-Year-Old Virgin"
   },
   {  
      "name":"51 Birch Street"
   },
   {  
      "name":"The Adventures of Sharkboy and Lavagirl in 3-D"
   },