Tutorial by Examples: u

import spock.lang.* class HelloWorldSpec extends Specification { @Shared message = 'Hello world!' def "The world can say hello using when and then"() { when: def newMessage = message then: newMessage == 'Hello world!' } ...

There are several ways to mark a comment block as a detailed description, so that this comment block is parsed by Doxygen and added as a description of the following code item to the documentation. The first and most common one are C style comments with an extra asterisk in the comment start sequenc...

Detailed instructions on getting split set up or installed.

import SpriteKit import UIKit class GameRoomTableView: UITableView,UITableViewDelegate,UITableViewDataSource { var items: [String] = ["Player1", "Player2", "Player3"] override init(frame: CGRect, style: UITableViewStyle) { super.init(frame: frame, s...

We create a dataset that we then fit with a straight line $f(x) = m x + c$. npoints = 20 slope = 2 offset = 3 x = np.arange(npoints) y = slope * x + offset + np.random.normal(size=npoints) p = np.polyfit(x,y,1) # Last argument is degree of polynomial To see what we've done: impor...

We use the same dataset as with polyfit: npoints = 20 slope = 2 offset = 3 x = np.arange(npoints) y = slope * x + offset + np.random.normal(size=npoints) Now, we try to find a solution by minimizing the system of linear equations A b = c by minimizing |c-A b|**2 import matplotlib.pyplot as...

dev.office.com/sharepoint is a great place to get started with the SharePoint Framework. The SharePoint Framework is a modern, client side approach to SharePoint Development initially targeted at SharePoint Online in Office 365. Web parts created with the SharePoint Framework are a new type of web ...

Using the Flyable example as a starting point, we can add a second interface, Swimmable, with the following code: Sub Swim() ' No code End Sub The Duck object can Implement both flying and swimming: Implements Flyable Implements Swimmable Public Sub Flyable_Fly() Debug.Print &quo...

from sqlalchemy import create_engine cnx = create_engine('mysql+pymysql://username:password@server:3306/database').connect() sql = 'select * from mytable' df = pd.read_sql(sql, cnx)

Typically, before developing a new HERE SDK application, you need to acquire a set of credentials by registering your application on http://developer.here.com. Each application requires a unique set of credentials. When you register your app, the registered bundle identifier must match the package n...

The pygame.mixer module helps control the music used in pygame programs. As of now, there are 15 different functions for the mixer module. Initializing Similar to how you have to initialize pygame with pygame.init(), you must initialize pygame.mixer as well. By using the first option, we initiali...

You use the FIRST_VALUE function to determine the first value in an ordered result set, which you identify using a scalar expression. SELECT StateProvinceID, Name, TaxRate,        FIRST_VALUE(StateProvinceID)         OVER(ORDER BY TaxRate ASC) AS FirstValue FROM SalesTaxRate; In this example,...

The LAST_VALUE function provides the last value in an ordered result set, which you specify using a scalar expression. SELECT TerritoryID, StartDate, BusinessentityID,        LAST_VALUE(BusinessentityID)          OVER(ORDER BY TerritoryID) AS LastValue FROM SalesTerritoryHistory; This example...

The PERCENT_RANK function calculates the ranking of a row relative to the row set. The percentage is based on the number of rows in the group that have a lower value than the current row. The first value in the result set always has a percent rank of zero. The value for the highest-ranked – or last...

This is a complete example of all the commonly used SQLite related APIs. The aim is to get you up and running really fast. You can also get a runnable PHP file of of this tutorial. Creating/opening a database Let's create a new database first. Create it only if the file doesn't exist and open it f...

Callback functions in JavaScript Callback functions are common in JavaScript. Callback functions are possible in JavaScript because functions are first-class citizens. Synchronous callbacks. Callback functions can be synchronous or asynchronous. Since Asynchronous callback functions may be more c...

Detailed instructions on getting nuget set up or installed.

Search Stack Overflow for duplicate questions. There common class of problems which have been already extensively documented. Read How do I ask a good question?. Read What topics can I ask about here? Apache Spark Community resources

The Go Playground One little known Go tool is The Go Playground. If one wants to experiment with Go without downloading it, they can easily do so simply by . . . Visiting the Playground in their web browser Entering their code Clicking “Run” Sharing your code The Go Playground also has too...

An example of a configuration function in SQL is the @@SERVERNAME function. This function provides the name of the local server that's running SQL. SELECT @@SERVERNAME AS 'Server' ServerSQL064 In SQL, most data conversions occur implicitly, without any user intervention. To perform any convers...