Tutorial by Examples: s

MediaTypeFormatter is an abstract class from which JsonMediaTypeFormatter and XmlMediaTypeFormatter classes inherit from. Here, JsonMediaTypeFormatter class handles JSON objects and XmlMediaTypeFormatter class handles XML objects. Return only JSON irrespective of the Accept Header value: To return...

CREATE OR REPLACE TRIGGER CORE_MANUAL_BIUR BEFORE INSERT OR UPDATE ON CORE_MANUAL FOR EACH ROW BEGIN if inserting then -- only set the current date if it is not specified if :new.created is null then :new.created := sysdate; end if; end if; -- always s...

ReactiveCocoa supports macOS 10.9+, iOS 8.0+, watchOS 2.0+, and tvOS 9.0+. Carthage If you use Carthage to manage your dependencies, simply add ReactiveCocoa to your Cartfile: github "ReactiveCocoa/ReactiveCocoa" ~> 5.0 If you use Carthage to build your dependencies, make sure you...

public async Task SetProductInactiveAsync(int productId) { using (IDbConnection con = new SqlConnection("myConnectionString")) { await con.ExecuteAsync("SetProductInactive", new { id = productId }, commandType: CommandType.StoredProcedure); ...

Some functions in R produce a side effect (i.e. saving, printing, plotting, etc) and do not always return a meaningful or desired value. %T>% (tee operator) allows you to forward a value into a side-effect-producing function while keeping the original lhs value intact. In other words: the tee op...

What is Dagger 2 ? The website describes itself as: Dagger is a fully static, compile-time dependency injection framework The library makes it easy to model dependency graphs as well as to reuse objects. Since reflection is only used at compile time as part of the annotation processing Dagger...

Define a module (the model of dependencies and their graph): @Module public class CoffeeModule{ @Provides public CoffeeMaker provideCoffeeMaker(){ return new CoffeeMaker(); } @Provides public Coffee provideCoffee(CoffeeMaker coffeeMaker){ return new ...

Fast Development process Decoupling Unit test writing Fast Development process When using dependency injection node developer can faster their development proceess because after DI there is less code conflict and easy to manage all module. Decoupling Modules becomes less couple then it i...

Installation Using apt on Debian based systems sudo apt-get install php5-imagick Using Homebrew on OSX/macOs brew install imagemagick To see the dependencies installed using the brew method, visit brewformulas.org/Imagemagick. Using binary releases Instructions on imagemagick website. Us...

This example is how to turn an image into a Base64 string (i.e. a string you can use directly in a src attribute of an img tag). This example specifically uses the Imagick library (there are others available, such as GD as well). <?php /** * This loads in the file, image.jpg for manipulation....

Though it is an obsoleted part of the XSI standard, many implementations still support multiple expressions with Boolean operators and parenthesis. The (obsolete) operators are listed below with decreasing precedence. ( expression ) expression -a expression expression -o expression Using thes...

Create simple CRUD Operation Using Serverless Framework Install Serverless framework globally npm install serverless -g Create simple Lambda Service serverless create --template aws-nodejs --path myService Go to the myService Directory it should contain serverless.yml handler.js even...

NOTES: We are going to install Magento 2 on fresh Ubuntu Server 16.04 LTS with PHP 7.0, MySQL 5.6 and Apache 2.4. 1. Setup Requirements Apache 2.2 or 2.4 with mod_rewrite module (or) Nginx >= 1.8. PHP 5.5 or later version. PHP 7.0 also supported. Required PHP-Modules – PDO/MySQL, mbstring, ...

Generators are fast coded and in many cases a slim alternative to heavy iterator-implementations. With the fast implementation comes a little lack of control when a generator should stop generating or if it should generate something else. However this can be achieved with the usage of the send() fu...

For giving short names to a data type Instead of: long long int foo; struct mystructure object; one can use /* write once */ typedef long long ll; typedef struct mystructure mystruct; /* use whenever needed */ ll foo; mystruct object; This reduces the amount of typing needed if the ...

In the following example we will be creating a table called Membership using the AWS Java SDK for DynamoDB. The table will consist of items that represent team assignments. The table will be partitioned by TeamID. Each team will have multiple members, identified by the MemberID (as a sort key). AWS...

There are several considerations when implementing Regular Expressions in Swift. let letters = "abcdefg" let pattern = "[a,b,c]" let regEx = try NSRegularExpression(pattern: pattern, options: []) let nsString = letters as NSString let matches = regEx.matches(in: letters, opt...

Patterns can be used to replace part of an input string. The example below replaces the cent symbol with the dollar symbol. var money = "¢¥€£$¥€£¢" let pattern = "¢" do { let regEx = try NSRegularExpression (pattern: pattern, options: []) let nsString = money as NSS...

To match special characters Double Backslash should be used \. becomes \\. Characters you'll have to escape include (){}[]/\+*$>.|^? The below example get three kinds of opening brackets let specials = "(){}[]" let pattern = "(\\(|\\{|\\[)" do { let regEx = try N...

Switches can switch on tuples: public typealias mdyTuple = (month: Int, day: Int, year: Int) let fredsBirthday = (month: 4, day: 3, year: 1973) switch theMDY { //You can match on a literal tuple: case (fredsBirthday): message = "\(date) \(prefix) the day Fred was born"...