Tutorial by Examples: p

Sometimes your description can get rather long. For instance irb -h lists on argument that reads: --context-mode n Set n[0-3] to method to create Binding Object, when new workspace was created It's not immediately clear how to support this. Most solutions require adjustin...

We will start with creating a simple node application with a basic structure and then connecting with local sql server database and performing some queries on that database. Step 1: Create a directory/folder by the name of project which you intent to create. Initialize a node application using npm ...

webpack-dev-server can proxy some requests to others servers. This might be useful for developing API client when you want to send requests to same domain. Proxy is configured via proxy parameter. Example configuration of dev server passing requests to /api to other service listening on port 8080 ...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

For example, say below is the sample data in an Excel 'Test', Purchase_Date Customer_Name Price 05-05-2017 Adam 1075 06-05-2017 Noah 1093 07-05-2017 Peter 1072 08-05-2017 Louis 1101 09-05-2017 Zoe 1248 10-05-2017 Kevin 1045 11-05-2017 Messiah 1...

SSIS tasks required. Data Flow Task: As the script component is only available in the data flow. Script Component: Inside this we will use variables and play with there values. Steps There are two methods to access variables inside of script component First Method - Using this.Variables ...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

This is project directory. A service endpoint interface First we will create a service endpoint interface. The javax.jws.WebService @WebService annotation defines the class as a web service endpoint. import javax.jws.WebMethod; import javax.jws.WebService; import javax.jws.soap.SOAPBi...

The example below uses the input statement to read a value from a source (in this case the string 123) into a both a character destination and a numeric destination. data test; source = '123'; numeric_destination = input(source, best.); character_destination = input(source, $3.); run; ...

import scalaz._ import Scalaz._ scala> Apply[Option].apply2(some(1), some(2))((a, b) => a + b) res0: Option[Int] = Some(3) scala> val intToString: Int => String = _.toString scala> Apply[Option].ap(1.some)(some(intToString)) res1: Option[String] = Some(1) scala> Appl...

Having different pipes is a very common case, where each pipe does a different thing. Adding each pipe to each component may become a repetitive code. It is possible to bundle all frequently used pipes in one Module and import that new module in any component needs the pipes. breaklines.ts import...

Unary operators act on the object upon which they are called and have high precedence. (See Remarks) When used postfix, the action occurs only after the entire operation is evaluated, leading to some interesting arithmetics: int a = 1; ++a; // result: 2 a--; // result: 1 i...

A common need for random numbers it to generate a number that is X% of some max value. this can be done by treating the result of NextDouble() as a percentage: var rnd = new Random(); var maxValue = 5000; var percentage = rnd.NextDouble(); var result = maxValue * percentage; //suppose NextDoub...

apcu_store can be used to store, apcu_fetch to retrieve values: $key = 'Hello'; $value = 'World'; apcu_store($key, $value); print(apcu_fetch('Hello')); // 'World'

When creating a std::unique_lock, there are three different locking strategies to choose from: std::try_to_lock, std::defer_lock and std::adopt_lock std::try_to_lock allows for trying a lock without blocking: { std::atomic_int temp {0}; std::mutex _mutex; std::thread t( [&...

std::scoped_lock provides RAII style semantics for owning one more mutexes, combined with the lock avoidance algorithms used by std::lock. When std::scoped_lock is destroyed, mutexes are released in the reverse order from which they where acquired. { std::scoped_lock lock{_mutex1,_mutex2}; ...

Compress-Archive -Path C:\Documents\* -CompressionLevel Optimal -DestinationPath C:\Archives\Documents.zip This command: Compresses all files in C:\Documents Uses Optimal compression Save the resulting archive in C:\Archives\Documents.zip -DestinationPath will add .zipif not present. -Li...

Compress-Archive -Path C:\Documents\* -Update -DestinationPath C:\Archives\Documents.zip this will add or replace all files Documents.zip with the new ones from C:\Documents

Expand-Archive -Path C:\Archives\Documents.zip -DestinationPath C:\Documents this will extract all files from Documents.zip into the folder C:\Documents

if (Patterns.EMAIL_ADDRESS.matcher(email).matches()){ Log.i("EmailCheck","It is valid"); }