Tutorial by Examples: g

Let's say you use Webpack for front end bundling. You can add webpack-dev-middleware to serve your statics through tiny and fast server. It allows you to automatically reload your assets when content has changed, serve statics in memory without continuously writing intermediate versions on disk. Pr...

You can use aspnetcore-spa generator for Yeoman to create brand-new single page application with asp.net core. This allows you to choose one of the popular front end frameworks and generates project with webpack, dev server, hot module replacement and server-side rendering features. Just run npm ...

This example helper class interacts with the finger print manager and performs encryption and decryption of password. Please note that the method used for encryption in this example is AES. This is not the only way to encrypt and other examples exist. In this example the data is encrypted and decryp...

The clj-time.coerce library can help converting other date-time formats to joda time format (clj-time.core/date-time). The other formats include Java long format, String, Date, SQL Date. To convert time from other time formats, include the library and use the from- function, e.g. (require '[clj-ti...

First, you'll need to install the Kotlin plugin. For Windows: Navigate to File → Settings → Plugins → Install JetBrains plugin For Mac: Navigate to Android Studio → Preferences → Plugins → Install JetBrains plugin And then search for and install Kotlin. You'll need to restart the IDE af...

You can create a New Project in Android Studio and then add Kotlin support to it or modify your existing project. To do it, you have to: Add dependency to a root gradle file - you have to add the dependency for kotlin-android plugin to a root build.gradle file. buildscript { repositorie...

Click to File → New → Kotlin Activity. Choose a type of the Activity. Select name and other parameter for the Activity. Finish. Final class could look like this: import android.support.v7.app.AppCompatActivity import android.os.Bundle class MainActivity : AppCompatActivity() { ...

Kotlin Plugin for Android Studio support converting existing Java files to Kotlin files. Choose a Java file and invoke action Convert Java File to Kotlin File:

The simplest of the five trigger types, the Trigger is responsible for setting properties based on other properties within the same control. <TextBlock> <TextBlock.Style> <Style TargetType="{x:Type TextBlock}"> <Style.Triggers> ...

# ruby 1.92 lower_limit = 1 upper_limit = 6 Random.new.rand(lower_limit..upper_limit) # Change your range operator to suit your needs

(Beginner level; IDE: CLion) First, install boost from the Cygwin mirror: open the install exe, search for boost, install the packages. After boost is installed: it will be located in /usr/include/boost. This is where everything is. All #include statements will be a path from the boost folder,...

The hslogger module provides a similar API to Python's logging framework, and supports hierarchically named loggers, levels and redirection to handles outside of stdout and stderr. By default, all messages of level WARNING and above are sent to stderr and all other log levels are ignored. import ...

apm is Atom's native package manager. It allows the user to manage packages and themes without having to initialise Atom itself. apm comes with the official installation and is automatically added to %PATH% if you're on Windows. To use apm, go to Command Prompt and type $ apm <command> He...

Generally, most of the data that is to be analyzed will be produced by various data sources like applications servers, social networking sites, cloud servers, and enterprise servers. This data will be in the form of log files and events. Log file − In general, a log file is a file that lists events...

cf logs AppName

cf logs AppName --recent Note, depending on who is hosting your CF app, the size of this log may be limited.

CF keeps you logged in. I sometimes have to switch between regions and don't always know where I am #Where am I? cf target #Login. This is logging in to the UK region of bluemix. Replace eu-gb with ng to go to the US. cf login -a https://api.eu-gb.bluemix.net #List spaces cf spaces #C...

This is the simplest way to connect. First, the driver has to be registered with java.sql.DriverManager so that it knows which class to use. This is done by loading the driver class, typically with java.lang.Class.forname(<driver class name>). /** * Connect to a PostgreSQL database. *...

Instead of specifying connection parameters like user and password (see a complete list here) in the URL or a separate parameters, you can pack them into a java.util.Properties object: /** * Connect to a PostgreSQL database. * @param url the JDBC URL to connect to. Must start with "jdbc:...

It is common to use javax.sql.DataSource with JNDI in application server containers, where you register a data source under a name and look it up whenever you need a connection. This is code that demonstrates how data sources work: /** * Create a data source with connection pool for PostgreSQL c...