Tutorial by Examples: le

The following is the default code snippet for the BundleConfig.cs file. using System.Web.Optimization; public class BundleConfig { // For more information on Bundling, visit http://go.microsoft.com/fwlink/?LinkId=254725 public static void RegisterBundles(BundleCollection bundles...

autodie allows you to work with files without having to explicitly check for open/close failures. Since Perl 5.10.1, the autodie pragma has been available in core Perl. When used, Perl will automatically check for errors when opening and closing files. Here is an example in which all of the lines ...

Let's say that you have exam scores for several exams and you want to divide them into quartiles per exam. -- Setup data: declare @values table(Id int identity(1,1) primary key, [Value] float, ExamId int) insert into @values ([Value], ExamId) values (65, 1), (40, 1), (99, 1), (100, 1), (90, 1), ...

Extract all file contents of a zip file import zipfile with zipfile.ZipFile('zipfile.zip','r') as zfile: zfile.extractall('path') If you want extract single files use extract method, it takes name list and path as input parameter import zipfile f=open('zipfile.zip','rb') zfile=zipfile.Z...

The wxWidgets project has adopted the release model used by the Linux Kernel project where there are alternating sets of releases where one set are considered "stable" and the next set are considered "development." For wxWidgets "stable" and "development" do n...

If you are using UIViewControllerContainment there are a few other methods that are worth looking at. When you want a child viewController to control the presentation of the status bar (i.e. if the child is positioned at the top of the screen in Swift class RootViewController: UIViewController { ...

Install serverless globally npm install serverless -g Create an AWS Lamdba function in Node.js serverless create --template aws-nodejs Example of a handler.js 'use strict'; // Your first function handler module.exports.hello = (event, context, cb) => cb(null, { message: 'Go Server...

This topic demonstrates how to use functions like withColumn, lead, lag, Level etc using Spark. Spark dataframe is an sql abstract layer on spark core functionalities. This enable user to write SQL on distributed data. Spark SQL supports hetrogenous file formats including JSON, XML, CSV , TSV etc. ...

Prerequisites: Apple Developers Account Setup GameCenter Leaderboards with iTunesConnect Setting up GameCenter Leaderboards: Sign in to iTunesConnect Go to My Apps. Create an app for your project then go to Features. Click on Game Center Click the plus sign next to Leaderboards. Choose...

/** *@NApiVersion 2.x *@NScriptType Suitelet */ define([],function() { // NetSuite's AMD pattern function onRequest_entry(context) { // Suitelet entry function receives a context obj context.response.write('Hello World'); // Write a response using the context obj } retu...

The simplest composite type is an immutable type. Instances of immutable types, like tuples, are values. Their fields cannot be changed after they are created. In many ways, an immutable type is like a Tuple with names for the type itself and for each field. Singleton types Composite types, by def...

Scenario: You need to select an implementation of address validation when a sales order is submitted, and the validator is determined by the country to which the order is shipping. The factory needs to inspect some value passed as an argument to select the correct implementation. First, write an in...

Scenario: You need to resolve a dependency when a method is called, not in the constructor. Solution: Inject an abstract factory into the constructor. When the method is called, it requests the dependency from the abstract factory, which in turn resolves it from the container. (Your class depends o...

const Koa = require('koa') const app = new Koa() app.use(async ctx => { ctx.body = 'Hello World' }) app.listen(8080)

app.use(async (ctx, next) => { try { await next() // attempt to invoke the next middleware downstream } catch (err) { handleError(err, ctx) // define your own error handling function } })

Unlike var, const/let are bound to lexical scope rather than function scope. { var x = 1 // will escape the scope let y = 2 // bound to lexical scope const z = 3 // bound to lexical scope, constant } console.log(x) // 1 console.log(y) // ReferenceError: y is not defined console.log(z...

You should have the basic express-generator template In app.js, add(you can add it anywhere after var app = express.app()): app.post(function(req, res, next){ next(); }); Now in your index.js file (or its respective match), add: router.get('/ajax', function(req, res){ res.render('aj...

This UNION ALL combines data from multiple tables and serve as a table name alias to use for your queries: SELECT YEAR(date_time_column), MONTH(date_time_column), MIN(DATE(date_time_column)), MAX(DATE(date_time_column)), COUNT(DISTINCT (ip)), COUNT(ip), (COUNT(ip) / COUNT(DISTINCT (ip))) AS Ratio ...

Dockerization of ASP.NET Application requires a Dockerfile for configuration and running it as a docker container. FROM microsoft/dotnet:latest RUN apt-get update && apt-get install sqlite3 libsqlite3-dev COPY . /app WORKDIR /app RUN ["dotnet", "restore"] ...

using Google.Contacts; using Google.GData.Client; using Google.GData.Contacts; using Google.GData.Extensions; using Newtonsoft.Json; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Net; using System.Text; using System.Web; using System.Web...