Tutorial by Examples: u

Go to Main.cs file in iOS project and change existed code, like presented below: static void Main(string[] args) { try { UIApplication.Main(args, null, "AppDelegate"); } catch (Exception ex) { Debug.WriteLine(...

let doc = require('dynamodb-doc'); let dynamo = new doc.DynamoDB(); var tblName = "MyTable"; exports.handler = (event, context, callback) => { readOperation(context); } function readOperation(cnxt) { var params = { TableName: tblName, Key: { "id": ...

By default, the url property is not defined. Calling fetch() (while using the default Backbone.sync) will result in a GET request to the results of url. var Users = Backbone.Collection.extend({ url: '/api/users', // or url: function () { return '/api/users' } }); va...

By default, the urlRoot property is not defined. This urlRoot property is used by the url method to create a relative URL where the model's resource would be located on the server. var User = Backbone.Model.extend({ urlRoot: '/api/users', // or urlRoot: function () { return '/...

Model.url and Collection.url are only used internally by the default Backbone.sync method. The default method assumes you are tying into a RESTful API. If you are using a different endpoint design, you will want to override the sync method and may want utilize the url method. var Model = Backbone.M...

Sometimes a component needs to render some data from a remote endpoint (e.g. a REST API). A standard practice is to make such calls in componentDidMount method. Here is an example, using superagent as AJAX helper: import React from 'react' import request from 'superagent' class App extends Rea...

Things are easy when you have to use a C++ library in a Python project. Just you can use Boost. First of all here is a list of components you need: A CMakeList.txt file, because you're going to use CMake. The C++ files of the C++ project. The python file - this is your python project. Let's...

Checking Requirements Run bin/symfony_requirements for checking symfony requirements and php cli setting. Install all packages that needed to run a symfony project. Setting your php.ini for example setting timezone and short_open_tag. Setting both php.ini for your php webserver (eg: /etc/php/apache...

<UserControl x:Class="Example.View" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"...

Assume the following enum: enum Operation { Multiply(left : Int, right : Int); } Enum matching can be performed as follows: var result = switch(Multiply(1, 3)) { case Multiply(_, 0): 0; case Multiply(0, _): 0; case Multiply(l, r): l * r; } Ref...

Assume the following structure: var dog = { name : "Woofer", age : 7 }; Enum matching can be performed as follows: var message = switch(dog) { case { name : "Woofer" }: "I know you, Woofer!"; case _: "I don't know you, so...

It is also possible to further restrict patterns with guards. These are defined by the case ... if(condition): syntax. var myArray = [7, 6]; var s = switch(myArray) { case [a, b] if (b > a): b + ">" +a; case [a, b]: b + "<=" +a; case _:...

This relies on the official consul docker image to run consul in clustered mode in a docker swarm with new swarm mode in Docker 1.12. This example is based on http://qnib.org/2016/08/11/consul-service/. Briefly the idea is to use two docker swarm services that talk to each other. This solves the pro...

This is example has extracted from this boilerplate. Custom middleware: export default function clientMiddleware() { return ({dispatch, getState}) => { return next => action => { if (typeof action === 'function') { return action(dispatch, getState); } ...

(Tested with ANTLR 4.5.3, Eclipse Neon, ANTLR 4 IDE 0.3.5, and Java 1.8) Download the latest ANTLR. Make sure to get the complete ANTLR Java binaries jar. Save to any appropriate location, for example the folder where other Java libraries are stored. It doesn’t matter where, just remember the loc...

' Just setting up the example Public Class A Public Property ID as integer Public Property Name as string Public Property OtherValue as Object End Class Public Sub Example() 'Setup the list of items Dim originalList As New List(Of A) originalList.Add(New A() With {...

:!mkdir -p %:h to create the missing directories, then :w

Setting up the folders This example assumes code to be in src/ and the output to be put into out/. As such the folder structure should look something like example/ |-- src/ | |-- index.js | `-- ... |-- out/ `-- package.json Setting up the packages Assuming a setup npm environment, we...

Setup After setting up a simple project to use webpack, babel and react issuing $npm i -g webpack-dev-server will install the development http server for quicker development. Modifying webpack.config.js var path = require('path'); module.exports = { entry: './src/index.js', output: { ...

A cycle in a directed graph exists if there's a back edge discovered during a DFS. A back edge is an edge from a node to itself or one of the ancestors in a DFS tree. For a disconnected graph, we get a DFS forest, so you have to iterate through all vertices in the graph to find disjoint DFS trees. ...