Tutorial by Examples: u

This attribute used t identify a method that is called once to perform setup before any child tests are run. For the new versions we are using OneTimeSetUp as the TestFixtureSetUp is obsolete. OneTimeSetUp [OneTimeSetUp] public void SetUp() { }

A public gist can be almost anything. A simple example of a Javascript function: function randomInt(min, max) { return Math.floor((max - min + 1) * Math.random()) + min; }

Minimum Vertex Cover is a classic graph problem. Let's say, in a city we have a few roads connecting a few points. Let's represent the roads using edges and the points using nodes. Let's take two example graphs: We want to set watchmen on some points. A watchman can guard all the roads connected ...

describe("Includes validations for index page", function () { });

since version 9.5 postgres offers UPSERT functionality with INSERT statement. Say you have a table called my_table, created in several previous examples. We insert a row, returning PK value of inserted row: b=# INSERT INTO my_table (name,contact_number) values ('one',333) RETURNING id; id ---- ...

Go to Tools -> Options. Go to Environment -> Keyboard -> Query Shortcuts On the right side you can see some shortcuts which are by default in SSMS. Now if you need to add a new one, just click on any column under Stored Procedure column. Click OK. Now please go to a query window and sel...

Import the namespace System.Runtime.Caching(Make sure that you have added System.Runtime.Caching DLL to your project reference). Create an instance of MemoryCache class. MemoryCache memCache = MemoryCache.Default; Add values to MemoryCache public IQueryable<tblTag> GettblTags() ...

Install the package: $ pip install pymssql import pymssql SERVER = "servername" USER = "username" PASSWORD = "password" DATABASE = "dbname" connection = pymssql.connect(server=SERVER, user=USER, password=PASSWORD, database=DATABASE...

Let's start with a simple algorithm to see how recursion could be implemented in Ruby. A bakery has products to sell. Products are in packs. It services orders in packs only. Packaging starts from the largest pack size and then the remaining quantities are filled by next pack sizes available. For ...

.prefer_dml 1 turn on dmlformat output .prefer_dml 0 turn off dmlformat output

XmlView: <mvc:View controllerName="sap.ui.demo.wt.controller.App" xmlns="sap.m" xmlns:mvc="sap.ui.core.mvc" displayBlock="true"> <App> <pages> <Page content="{path:'Tiles>/Tiles',fact...

Apple iOS 10 Mail doesn't always auto-scale non-responsive emails. The auto-scale meta tag can be used to disable auto-scale feature in iOS 10 Mail entirely. <meta name="x-apple-disable-message-reformatting">

Most Rx operators take an optional scheduler on which to schedule their future iterations. If not supplied they will use their default configured scheduler. Supplying a scheduler can be useful for testing purposes in which we like to talk about virtual time instead of real time for speed of test exe...

Tuples are often used within collections but they must be handled in a specific way. For example, given the following list of tuples: scala> val l = List(1 -> 2, 2 -> 3, 3 -> 4) l: List[(Int, Int)] = List((1,2), (2,3), (3,4)) It may seem natural to add the elements together using im...

Use this to reset the table to the condition at which it was created. This deletes all rows and resets values such as auto-increment. It also doesn't log each individual row deletion. TRUNCATE TABLE Employees

Create a folder where you would like to have your game live, and move into that mkdir my-new-game cd my-new-game Initialize the directory using npm. npm init -y Install phaser as a node package. npm install phaser Install http-server as a global module, to be used on the...

First simple Example: You have a ticket automat which gives exchange in coins with values 1, 2, 5, 10 and 20. The dispension of the exchange can be seen as a series of coin drops until the right value is dispensed. We say a dispension is optimal when its coin count is minimal for its value. Let M ...

With the Tap Gesture, you can make any UI-Element clickable (Images, Buttons, StackLayouts, ...): (1) In code, using the event: var tapGestureRecognizer = new TapGestureRecognizer(); tapGestureRecognizer.Tapped += (s, e) => { // handle the tap }; image.GestureRecognizers.Add(tapGestureR...

We have a set of jobs J={a,b,c,d,e,f,g}. Let j in J be a job than its start at sj and ends at fj. Two jobs are compatible if they don't overlap. A picture as example: The goal is to find the maximum subset of mutually compatible jobs. There are several greedy approaches for this problem: Earli...

Open a raster that covers the globe and extract a subset of the raster. import gdal # Path to a tiff file covering the globe # http://visibleearth.nasa.gov/view.php?id=57752 tif_name = "/path_name/land_shallow_topo_21600.tif" # Open raster in read only mode ds = gdal.Open(tif_n...