Tutorial by Examples: u

let col_1 = db.collection('col_1'); let col_2 = db.collection('col_2'); col_1 .aggregate([ { $match: { "_id": 1 } }, { $lookup: { from: "col_2", localField: "id", foreignField: "id", ...

We're going to integrate the AlmostEqualToConstraint with the fluent NUnit interfaces, specifically the Is one. We'll need to extend the NUnit provided Is and use that throughout our code. public class Is : NUnit.Framework.Is { public static AlmostEqualToConstraint AlmostEqualTo(int expected,...

Users often turn up in a situation when a business process cannot be finished because the user has not entered all the necessary information. An example of this situation is when a user tries to create a drop-ship order with missing customer address. According to UX best practices, the system shou...

Note: Angular CLI versions are under rapid development. This documentation targets for the latest version. Prerequisites To execute and work with the latest version, Angular CLI and the project have dependencies that require node v6.9.0 or higher. Setup Make sure that a node version is insta...

Detailed instructions on getting adobe-analytics set up or installed.

Let's take an scenario to understand advance function in better way, struct User { var name: String var age: Int var country: String? } //User's information let user1 = User(name: "John", age: 24, country: "USA") let user2 = User(name: "Chan", age...

The Entity Framework library comes only with an SQL Server provider. To use SQLite will require additional dependencies and configuration. All required dependencies are available on NuGet. Install SQLite Managed Libraries All of the mananged depedencies can be installed using the NuGet Package Man...

public async int call_async () { return 1; } call_async.begin ((obj, res) => { var ret = call_async.end (res); }); To call an asynchronous functions from a synchronous context, use the begin method and pass a callback to receive the result. The two arguments are: obj is a GLi...

Detailed instructions on getting webview set up or installed.

<?xml version="1.0" encoding="UTF-8"?> <mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" ...

JS es6 (also known as es2015) is a set of new features to JS language aim to make it more intuitive when using OOP or while facing modern development tasks. Prerequisites: Check out the new es6 features at http://es6-features.org - it may clarify to you if you really intend to use it on your n...

After going through the Basic Setup example, you may find yourself repeating most part of it in every single Scala Gradle project. Smells like boilerplate code... What if, instead of applying the Scala plugin offered by Gradle, you could apply your own Scala plugin, which would be responsible for h...

package com.j2ko.webviewapp; import android.graphics.Bitmap; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.webkit.WebResourceRequest; import android....

NPM If external library like jQuery is installed using NPM npm install --save jquery Add script path into your angular-cli.json "scripts": [ "../node_modules/jquery/dist/jquery.js" ] Assets Folder You can also save the library file in your assets/js directory and in...

To use jquery in your Angular 2.x components, declare a global variable on the top If using $ for jQuery declare var $: any; If using jQuery for jQuery declare var jQuery: any This will allow using $ or jQuery into your Angular 2.x component.

The following is an example of using an user-defined function to be called multiple(∞) times in a script with ease. import turtle, time, random #tell python we need 3 different modules turtle.speed(0) #set draw speed to the fastest turtle.colormode(255) #special colormode turtle.pensize(4) #siz...

Install cordova using the following command npm install -g cordova. Use cordova -version to check the cordova version. Set path variables ANDROID_HOME and JAVA_HOME. Example: export ANDROID_HOME = /home/geethu/android-sdk-linux export PATH = $PATH:$ANDROID_HOME/tools:$ANDROID_H...

$ perldoc -l Time::Local

$ corelist -v v5.23.1

To create a new project ng new [project-name] which initializes git.Install packages for tooling via npm. It creates the project successfully. cd [project-name] and execute either npm start or ng serve It'll run the server in the given default port. Application will refresh according to the chan...