Tutorial by Examples: v

Transversing a JSON document

In the following examples, json contains a JSON object with the following data: [ { "name": "John Doe", "work": { "company": { "name": "ASDF INC", "country": "USA" }, ...

playframework • Java - Working with JSON

Conversion between JSON and Java objects (basic)

By default, Jackson (the library Play JSON uses) will try to map every public field to a json field with the same name. If the object has getters/setters, it will infer the name from them. So, if you have a Book class with a private field to store the ISBN and have get/set methods named getISBN/setI...

playframework • Java - Working with JSON

Using different Properties/Configuration for different environments like dev, qa, staging etc.

Large scale applications often need different properties when running on different environments. we can achieve this by passing arguments to NodeJs application and using same argument in node process to load specific environment property file. Suppose we have two property files for different enviro...

Node.js • Deploying Node.js applications in production

Delete all previous versions of the item in the index when adding new version

By default Sitecore adds all versions of the item to the sitecore_master_index. The drawback of that is that if users are using workflows and adding lots of versions all of them will be added to the search results in the content editor. Configuration: <event name="item:versionAdded" &...

sitecore • Search

Navigate to Uri

This code simply navigates WebView to some Uri: this.webView.Navigate(new Uri("http://stackoverflow.com/")); or this.webView.Source = new Uri("http://stackoverflow.com/");

uwp • WebView navigation

Navigate with HttpRequestMessage

Set custom user agent and navigate to Uri: var userAgent = "my custom user agent"; var uri = new Uri("http://useragentstring.com/"); var requestMessage = new HttpRequestMessage(HttpMethod.Get, uri); requestMessage.Headers.Add("User-Agent", userAgent); this.webVie...

uwp • WebView navigation

Navigate to string

Show specified html string in WebView: var htmlString = @"<!DOCTYPE html> <html> <head><title>HTML document</title></head> <body> <p>This is simple HTML content.</p> </body>...

uwp • WebView navigation

NavigateToLocalStreamUri

In case when NavigateToString can't handle some content, use NavigateToLocalStreamUri method. It will force every locally-referenced URI inside the HTML page to call to the special resolver class, which can provide right content on the fly. Assets/Html/html-sample.html file: <!DOCTYPE html> ...

uwp • WebView navigation

Value From App.Config

<asp:Literal runat="server" text="<%$ AppSettings:MyAppSettingName %>"/>

ASP.NET • Expressions

Evaluated Expression

ASP.NET • Expressions

Word Count Example in Hive

Docs file (Input File) Mary had a little lamb its fleece was white as snow and everywhere that Mary went the lamb was sure to go. Hive Query CREATE TABLE FILES (line STRING); LOAD DATA INPATH 'docs' OVERWRITE INTO TABLE FILES; CREATE TABLE word_counts AS SELECT word, count(1) AS count F...

hive • Getting started with hive

Reading files: foreach vs. while

When reading a potentially large file, a while loop has a significant memory advantage over foreach. The following will read the file record by record (by default, "record" means "a line", as specified by $/), assigning each one to $_ as it is read: while(<$fh>) { pri...

Perl Language • Memory usage optimization

Verifying a Returned Value

[Test] public void Calculator_Add_ReturnsSumOfTwoNumbers() { Calculator calculatorUnderTest = new Calculator(); double result = calculatorUnderTest.Add(2, 3); Assert.AreEqual(5, result); }

unit-testing • Assertion Types

Verifying an Exception is Thrown

Sometimes it is necessary to assert when an exception is thrown. Different unit testing frameworks have different conventions for asserting that an exception was thrown, (like NUnit's Assert.Throws method). This example does not use any framework specific methods, just built in exception handling. ...

unit-testing • Assertion Types

Dev and Prod environment using different datasources

After succesfully setup Spring-Boot application all the configuration is handled in an application.properties file. You will find the file at src/main/resources/. Normally there is a need to have a database behind the application. For development its good to have a setup of dev and a prod environme...

spring-boot • Create and Use of multiple application.properties files

Behavior Implementation

using System.Windows; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interactivity; namespace MyBehaviorAssembly { public class SliderDragEndValueBehavior : Behavior<Slider> { public static readonly DependencyProperty ValueProper...

wpf • Slider Binding: Update only on Drag Ended

Installing Plugins for Responsive images|Css Minification|Js minification

Our goal , is to Make your Images conform to widths and scale appropriately, by generating a battery of images of varied widths, and to minify them Lint your Javascript Minimize your assets - JS/CSS/HTML , thus enabling you to host a lighter than lightest code Watch the css/js/image files for ...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Debug on iOS device using USB

Disable Private Browsing Open your device’s Safari settings and ensure that Private Browsing is turned off. Remote debugging will not work if Private Browsing is enabled. Enable Web Inspector Tap the Advanced tab on your device’s Safari settings and ensure that Web Inspector is turned on....

Cordova • Debugging the application

MvvmCross Installation

Installing mvvmcross with nugget: Search for mvvmcross in the "Manage Nugget Packages" window. Installing mvvmcross with Package Manger Console: PM> Install-Package MvvmCross Make sure to install it on both your PCL (Portable Class Library) and you application project. As the...

mvvmcross • Getting started with mvvmcross

What's mvvmcross

Mvvmcross is an open source MVVM platform that comes to solve our problems while developing cross platform applications (such as Android, Windows Phone, IOS, etc...). The main problem is, that every platform has its own specifics, but the business logic of your application is likely to be the same ...

mvvmcross • Getting started with mvvmcross