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hieunguyendut / callback_problem.js
Created Jan 6, 2018
problem with scope of variable callback
View callback_problem.js
function getAllCity(req, res) {
var promise = Q.fcall(function() {
return City.find({}, function(err, cities) {
if(err) {
console.log(err);
return res.send(404)
}
for (let i = 0; i < cities.length; i++) {
Location.findOne({_id : cities[i].locationId}, function(err, location){
if(err) return;
View command-line.md

Some command line common

1. copy file: scp houser.png root@beta.houseseeker.vn:/root/github/HouseSeeker_Backend/vinmas_images
2. yarn remove <module-name>
3. sudo dpkg -i file.deb
4. sudo halt and sudo reboot.

Docker

1. docker-compose up run container
View question.md

package.json

1. Su khac nhau giua --save, --save-dev
2. Tai mot module ma chi su dung 1 vai lan trong code thi co nen k?
3. Tai lieu thiet ke co so du lieu noSQL
4. Lam sao de luu gia tri bien trong callback
5. _v trong database mongodb de lam gi?
6. Lam sao de day nhieu file trong angular ma multer co the parse ra va day vao req.files duoc.
7. Mot vai luu y sau khi review
View server2.js
const express = require('express');
const mongoose = require('mongoose');
const autoIncrement = require('mongoose-auto-increment');
const app = express();
mongoose.connect('mongodb://localhost/test');
var Schema = mongoose.Schema;
var personSchema = Schema({
View server.js
const express = require('express');
const mongoose = require('mongoose');
const app = express();
mongoose.connect('mongodb://localhost/test');
var Schema = mongoose.Schema;
var personSchema = Schema({
_id: Schema.Types.ObjectId,
View population.js
var Mongoose = require('mongoose');
var autoIncrement = require('mongoose-auto-increment')
var Schema = Mongoose.Schema;
// Mongoose.Promise = require('bluebird');
var db = Mongoose.connect('mongodb://localhost/Population', {
useMongoClient: true
}, (err) => {
if (err) {
console.log(`Can't connect to MongoDB`);
View sign-up.html
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("#uploadForm").submit(function(event){
// disable the default form submission
event.preventDefault();
//grab all form data
View config-nginx.md
server {
    listen 80 default_server;

    server_name 128.199.174.129;

    location / {
    proxy_pass http://localhost:3000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
View app.js
const express = require('express');
const fileUpload = require('express-fileupload');
const bodyParser = require('body-parser');
const app = express();
// default options
app.use(fileUpload());
app.use(bodyParser.urlencoded({extended: false}));
app.use(bodyParser.json());
app.use(function (req, res, next) {
View jquery-ajax.js
$(document).ready(function(){
$("#uploadForm").submit(function(event){
// disable the default form submission
event.preventDefault();
//grab all form data
var formData = new FormData($(this)[0]);
$.ajax({
url: 'http://localhost:3001/api/signup',
headers: {
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