Tutorial by Examples: g

Assuming you have already set up an app in Android Studio, add a ListView to a layout (or skip if that's already done): <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/...

Define a sequence of Targets (Target1, then Target2) that must execute before Target3. Note that an execution request for Target3 is required to cause Target1 and Target2 to be executed. <Target Name="Target3" DependsOnTargets="Target1;Target2"> </Target> <Tar...

Define a Target (Target1) for which an execution request will cause Target2 to be executed afterward. <Target Name="Target2" AfterTargets="Target1"> </Target> <Target Name="Target1"> </Target>

Define a Target (Target2) for which an execution request will cause Target1 to be executed beforehand. <Target Name="Target2"> </Target> <Target Name="Target1" BeforeTargets="Target2"> </Target>

Immutable is a great library that provides us with immutable versions of widely used types of collections, such as Lists, Stacks, Maps, and more. It simplifies the manipulation of the state and makes it easier to make pure calculations and avoid mutation. Let's see how the Basic reducer can be rew...

You can add a method to any class in Ruby, whether it's a builtin or not. The calling object is referenced using self. class Fixnum def plus_one self + 1 end def plus(num) self + num end def concat_one self.to_s + '1' end end 1.plus_one # => 2 3.plus(5) ...

Objective: Use SignalR for notification between Web API, and TypeScript/JavaScript based Web App, where Web API and the Web App is hosted in different domain. Enabling SignalR and CORS on Web API: Create a standard Web API project, and install the following NuGet packages: Microsoft.Owin.Cors ...

If you want to check the existence of one file or do a couple of actions for every file in a folder you can use the Foreach Loop Container. You give the path and the file mask and it will run it for every file it finds

First step is create navigation interface which we will use on view model: public interface IViewNavigationService { void Initialize(INavigation navigation, SuperMapper navigationMapper); Task NavigateToAsync(object navigationSource, object parameter = null); Task GoBackAsync(); } ...

var mongoose = require('mongoose'); //assume Player and Board schemas are already made var Player = mongoose.model('Player'); var Board = mongoose.model('Board'); //Each key in the schema is associated with schema type (ie. String, Number, Date, etc) var gameSchema = new mongoose.Schema({ ...

The showcase of Primefaces components you can find here and documentation is here Frontend needs to be saved as a XHTML file. This file can contain JSF, JSTL, JSP, HTML, CSS, jQuery, javaScript and its framework and more front-end technologies. Please, do not mix JSF and JSP technologies together....

Merging key names are same pd.merge(df1, df2, on='key') Merging key names are different pd.merge(df1, df2, left_on='l_key', right_on='r_key') Different types of joining pd.merge(df1, df2, on='key', how='left') Merging on multiple keys pd.merge(df1, df2, on=['key1', 'key2']) Treatment...

You'll first send the user to the Twitch authorization endpoint. This URL is made up of a the base authorization URL (https://api.twitch.tv/kraken/oauth2/authorize) and query string parameters that define what you're requesting. The required parameters are response_type, client_id, redirect_uri, and...

When the user goes to the authorization endpoint, they will be asked to give your application permission to the scopes that you've requested. They can decline this, so you must make sure to take that into consideration in your code. After they've allowed your application access, the user will be red...

Now that you have an authorization code, you can make a POST to the token endpoint (https://api.twitch.tv/kraken/oauth2/token) to get an OAuth token. You will receive a JSON-encoded access token, refresh token, and a list of the scopes approved by the user. You can now use that token to make authent...

function lastRowForColumn(sheet, column){ // Get the last row with data for the whole sheet. var numRows = sheet.getLastRow(); // Get all data for the given column var data = sheet.getRange(1, column, numRows).getValues(); // Iterate backwards and find first non empty cell ...

The pyplot interface to matplotlib might be the simplest way to close a figure. import matplotlib.pyplot as plt plt.plot([0, 1], [0, 1]) plt.close()

A specific figure can be closed by keeping its handle import matplotlib.pyplot as plt fig1 = plt.figure() # create first figure plt.plot([0, 1], [0, 1]) fig2 = plt.figure() # create second figure plt.plot([0, 1], [0, 1]) plt.close(fig1) # close first figure although second one is active ...

This is how the Asset Catalog in Xamarin Studio looks like, As shown in above picture there are 5 types of assets you can create within the catalog. I will cover only image set, because its the simplest one. When you create a new image set. You will get options like this To add images to the...

A path through every vertex exactly once is the same as ordering the vertex in some way. Thus, to calculate the minimum cost of travelling through every vertex exactly once, we can brute force every single one of the N! permutations of the numbers from 1 to N. Psuedocode minimum = INF for all per...