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List of commands that will be introduced here: ls #view contents of a directory touch #create new file mkdir #create new directory cp #copy contents of one file to another mv #move file from one location to another rm #delete a file or directory ls examples jennifer@my_co...

Elixir is available in main packages repository. Update the packages list before installing any package: emerge --sync This is one step installation: emerge --ask dev-lang/elixir

Authentication filters Are a new kind of filter added in ASP.NET MVC 5.0 .That run prior to authorization filters in the ASP.NET MVC pipeline and allow you to specify authentication logic per-action, per-controller, or globally for all controllers. Authentication filters process credentials in th...

Encryption is used to transform data in its orignal format (Eg: The contents of a letter, Credentials part of authorizing a financial transaction) to something that cannot be easily reconstructed by anyone who is not intended to be part of the conversation. Basically encryption is used to preve...

Ionic Platform: Build, push, deploy, and scale your Ionic apps, the easy way. Title Description: The Ionic Platform is a cloud platform for managing and scaling cross-platform mobile apps. Integrated services enable you and your team to build, deploy, and grow your apps efficiently. Docume...

When a hit is sent to Google Analytics the data must be processed. Processing latency is 24-48 hours. This means that it can take time before you will see data under standard reports (Not real-time) any data that you do see may not be correct as it has probably not completed processing. Standard a...

To decouple and reuse the same error logging code for all your services you need two boilerplate classes and tuck them away in a library somewhere. ErrorhandlerAttribute implementing IServiceBehavior. FaultErrorhandler implementing IErrorhandler which logs all the exceptions. [AttributeUsage(Attr...

Given you have a valid CouchDbInstance instance, you connect to a database within CouchDB in the following manner CouchDbConnector connector = dbInstance.createConnector("databaseName", true);

Sometimes you need to set the same data in many of your views. Using View::share // "View" is the View Facade View::share('shareddata', $data); After this, the contents of $data will be available in all views under the name $shareddata. View::share is typically called in a service p...

Objective C CATransition *animation = [CATransition animation]; [animation setSubtype:kCATransitionFromRight];//kCATransitionFromLeft [animation setDuration:0.5]; [animation setType:kCATransitionPush]; [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEa...

Asynchronous validators allows you to validate form information against your backend (using $http). These kind of validators are needed when you need to access server stored information you can't have on your client for various reasons, such as the users table and other database information. To us...

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": ...

For a more real time solution you can use watchPosition function in Geolocation that notifies whenever an error or a position change occurs. Unlike the getCurrentPosition the watchPosition returns an Observable import {Geolocation} from 'ionic-native'; import template from './custom-component.htm...

The .fade and .in classes adds a fading effect when closing the alert message. <div class="alert alert-success fade in"> <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a> <strong>Succ...

using System; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Interactivity; using System.Windows.Media; using System.Windows.Media.Imaging; namespace MyBehavior...

Before understand require to follow some setup for project integrate with firebase. Create your project in Firebase Console and download google-service.json file from console and put it in app level module of your project, Follow link for Create Project in console After this we require to...

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...

var result = switch([1, 6]) { case [2, _]: "0"; case [_, 6]: "1"; case []: "2"; case [_, _, _]: "3"; case _: "4"; } References "Array matching", Haxe manual

The | operator can be used anywhere within patterns to describe multiple accepted patterns. If there is a captured variable in an or-pattern, it must appear in both its sub-patterns. var match = switch(7) { case 4 | 1: "0"; case 6 | 7: "1"; case _: "2"; ...