Tutorial by Examples: cs

Using srcset with sizes <img sizes="(min-width: 1200px) 580px, (min-width: 640px) 48vw, 98vw" srcset="img/hello-300.jpg 300w, img/hello-600.jpg 600w, img/hello-900.jpg 900w, img/hello-1200.jpg 1200w" src="img/hello-900.jpg&quo...

COPY products(is_public, title, discount) TO 'D:\csv_backup\products_db.csv' DELIMITER ',' CSV HEADER; COPY categories(name) TO 'D:\csv_backup\categories_db.csv' DELIMITER ',' CSV HEADER;

COPY products TO 'D:\csv_backup\products_db.csv' DELIMITER ',' CSV HEADER; COPY categories TO 'D:\csv_backup\categories_db.csv' DELIMITER ',' CSV HEADER;

Terminal Commands: rails g model Product name:string quantity:integer price:decimal{12,2} rake db:migrate Lates create controller. Terminal Commands: rails g controller Products Controller Code: class HistoriesController < ApplicationController def create file = Dir.glob(...

Data mining is a wide topic, and the term is (unfortunately) very liberally thrown at any topic that involves data processing. Because of this this "documentation" should never have been created in the first place, because it overlaps with other topcis too much, and everything is better di...

From Apple documentation for IV, This parameter is ignored if ECB mode is used or if a stream cipher algorithm is selected. func AESEncryption(key: String) -> String? { let keyData: NSData! = (key as NSString).data(using: String.Encoding.utf8.rawValue) as NSData! ...

SELECT * FROM MY_TABLE

The following example is an example of a basic server: # Imports the Flask class from flask import Flask # Creates an app and checks if its the main or imported app = Flask(__name__) # Specifies what URL triggers hello_world() @app.route('/') # The function run on the index route def hello...

Starting with version 3.2 of the ArcGIS API for JavaScript, developers must include an additional Cascading Style Sheet (CSS) file: esri.css. The URL for this file is: // versions 3.11 and forward <link rel="stylesheet" href="https://js.arcgis.com/API-VERSION/esri/css/esri.css&...

The esri.css file does not include the CSS for various Dojo widgets or themes like tundra or claro; those files must be included separately. Exceptions are the Grid and RangeSlider, which are used by widgets in the API. Grid styles must be explicitly included. For instance, this CSS file would be i...

Let's take this example without using generics protocol JSONDecodable { static func from(_ json: [String: Any]) -> Any? } The protocol declaration seems fine unless you actually use it. let myTestObject = TestObject.from(myJson) as? TestObject Why do you have to cast the result to T...

@Configuration public class AppSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired DataSource dataSource; @Autowired public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { auth.jdbcAuthentication().dataSource(dataSource) .pa...

There are cases when you need to change Display Name of column in a list view e.g. Column Name showing in the view is "IsApprovalNeeded" and you want to appear as "Is Approval Needed?". You can, of course change the display name of a column by changing the column title in list ...

First, you need to prepare the environment by creating the SQL Server table and the CSV file. Run the script below in SQL Server to create the SQL table either on a new database or an existing one. For this example, I used my ‘TrainingDB’ database. /* Creates table for Students.csv */ CREATE TABL...

The various parts of the introduction aim to give the information that any programmer new to Outlook VBA would need. Much of the code was originally developed with Outlook 2003 and has been tested with Outlook 2016. It should work unchanged with any intermediate version. New functionality has been...

In this article we will use a simple database called “Company” with two tables: [dbo].[Categories]([CategoryID], [CategoryName]) [dbo].[Products]([ProductID], [CategoryID], [ProductName]) 1-1 Generate Entity Framework code In this layer we generate the Entity Framework code (in project library) ...

Built-in forms are great but sometimes there is a need to customize them, adding new fields or simply changing CSS attributes. This example is applicable to several use cases but here it is presented regarding PasswordChangeForm and its use in a Bootstrap website. The solution is to create another...

Follow following steps to try out a sample application on AWS ECS service as a proof of concept. Login to AWS management console and go to AWS service catalog - > Compute - > Ec2 Create a VM(EC2 instance) using amazon linux 64 bit OS, this we will use to configure docker, git, AWS ECS agen...

GraphicsContext provides a set of methods to draw and fill geometric shapes. Typically, these methods need coordinates to be passed as their parameters, either directly or in a form of an array of double values. The coordinates are always relative to the Canvas, whose origin is at the top left corne...

Consider a down-pointing triangle. There are several correct ways to display this symbol on a web page. Method 1 : use decimal HTML entity HTML : ▼ Method 2 : use hexidecimal HTML entity HTML : ▼ Method 3 : use character directly HTML : ▼ Method 4 : use CS...