Tutorial by Examples: e

There are four predefined markup extensions in XAML: x:Type supplies the Type object for the named type. This facility is used most frequently in styles and templates. <object property="{x:Type prefix:typeNameValue}" .../> x:Static produces static values. The values come from va...

To easily link your Redux store to your React components you can use an additional library: react-redux. First, you need to wrap your app in a Provider, which is a component that passes your store to be used by child components: import { Provider } from 'react-redux'; /// ... store = createStor...

After you wrapped your app into provider you can use connect function to subscribe your component to store changes and provide mapping between Redux state properties and React components' properties: import { connect } from 'react-redux'; const MyComponent = ({data}) => ( <div>{data...

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({ ...

using Xunit; public class SimpleCalculatorTests { [Theory] [InlineData(0, 0, 0, true)] [InlineData(1, 1, 2, true)] [InlineData(1, 1, 3, false)] public void Add_PassMultipleParameters_VerifyExpected( int inputX, int inputY, int expected, bool isExpectedCorrect) ...

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...

Server syntax: var io = require('socket.io')(80); io.on('connection', function (mysocket) { //emit to all but the one who started it mysocket.broadcast.emit('user connected'); //emit to all sockets io.emit('my event', { messg: 'for all'}); }); // a javascript client would listen ...

This line of code demonstrate how to check if a specific field is NULL or has blank value =IIF(IsNothing(Fields!UserEmail.Value) OR Fields!UserEmail.Value = "", "Empty", "Not Empty") This line of code checks if the field is NULL IsNothing(Fields!UserEmail.Value) ...

Excel -> Save as -> Save as type -> "Comma separated value (*.csv)" AND Tools (left to Save button) -> Web options -> Encoding -> Save this document as -> Unicode (UTF-8)

The host file is used to store connections for Anisble playbooks. There are options to define connection parameters: ansible_host is the hostname or IP address ansible_port is the port the machine uses for SSH ansible_user is the remote user to connect as ansible_ssh_pass if using a password to ...

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...