First, install Mongoose with:
npm install mongoose
Then, add it to server.js as dependencies:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
Next, create the database schema and the name of the collection:
var schemaName = new Schema({
request: String,
time: Nu...
Setup
First, install the necessary packages with:
npm install express cors mongoose
Code
Then, add dependencies to your server.js file, create the database schema and the name of the collection, create an Express.js server, and connect to MongoDB:
var express = require('express');
var cors =...
Setup
First, install the necessary packages with:
npm install express cors mongoose
Code
Then, add dependencies to server.js, create the database schema and the name of the collection, create an Express.js server, and connect to MongoDB:
var express = require('express');
var cors = require('...
There is currently a proposal (not yet part of the ECMAScript standard) to add a finally callback to promises that will be executed regardless of whether the promise is fulfilled or rejected. Semantically, this is similar to the finally clause of the try block.
You would usually use this functional...
We often encounter a situation where a property we're trying to extract doesn't exist in the object/array, resulting in a TypeError (while destructuring nested objects) or being set to undefined. While destructuring we can set a default value, which it will fallback to, in case of it not being found...
We are not limited to destructuring an object/array, we can destructure a nested object/array.
Nested Object Destructuring
var obj = {
a: {
c: 1,
d: 3
},
b: 2
};
var {
a: {
c: x,
d: y
},
b: z
} = obj;
console.log(x, y, z); // 1,3,2
Nested Array ...
\documentclass{article}% or book, report, ...
\begin{document}
See \cite{citeA} or \cite{citeB} or \cite{citeA, citeB}.
\begin{thebibliography}{x}
% \bibitem{<biblabel>} <citation>
\bibitem{citeA}
{\scshape Author, A}, {\itshape A title}, Journal of So-and-So, 2000....
round() tie breaking
In Python 2, using round() on a number equally close to two integers will return the one furthest from 0. For example:
Python 2.x2.7
round(1.5) # Out: 2.0
round(0.5) # Out: 1.0
round(-0.5) # Out: -1.0
round(-1.5) # Out: -2.0
In Python 3 however, round() will retur...
adduser command adds a user to the system. In order to add a new user type:
sudo adduser <user_name>
example:
sudo adduser tom
After typing the above command, you will be prompted to enter details about the new user, such as new password, user Full name, etc.
Below is the information ...
Don't you hate it when interfaces pollute you class with too many members you don't even care about? Well I got a solution! Explicit Implementations
public interface IMessageService {
void OnMessageRecieve();
void SendMessage();
string Result { get; set; }
int Encoding { get; se...
To register your device for push notifications, add the following code to your AppDelegate file in didFinishLaunchingWithOptions method:
Swift
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for c...
Note: Before upgrading your Rails app, always make sure to save your code on a version control system, such as Git.
To upgrade from Rails 4.2 to Rails 5.0, you must be using Ruby 2.2.2 or newer. After upgrading your Ruby version if required, go to your Gemfile and change the line:
gem 'rails', '...
Strings Array
When selecting a value in the select dropdown and providing an array of strings, the selected value will be bound to the select element's value property as a string that we can display using string interpolation.
export class MyViewModel {
animals = [];
favouriteAnimal = nu...
Binding to the browser native style attribute using Aurelia. If using string interpolation, you should use the css alias so styling works in Internet Explorer.
Style String
export class MyViewModel {
constructor() {
this.styleString = 'color: #F2D3D6; background-color: #333';
}
}
&l...
Everything you need to get started with Django admin is already setup in Django's default project layout. This includes:
# settings.py
# `django.contrib.admin` and its dependancies.
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',...
The following are the steps to start an Eclipse remote debugger. This is useful when the application is not started from a server instance within Eclipse. This feature is really powerful and can also help debugging code which resides in the test or production environment. Let's have a look at the se...
