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Dependency Properties are a type of property that extend out a CLR property. Whereas a CLR property is read directly from a member of your class, a Dependency Property will be dynamically resolved when calling the GetValue() method that your object gains via inheritance from the base DependencyObje...

In Powershell, to avoid storing the password in clear text we use different methods of encryption and store it as secure string. When you are not specifying a key or securekey, this will only work for the same user on the same computer will be able to decrypt the encrypted string if you’re not using...

A PreparedStatement declares the statement before it is executed, and allows for placeholders for parameters. This allows the statement to be prepared (and optimized) once on the server, and then reused with different sets of parameters. The added benefit of the parameter placeholders, is that it...

In all cases when extending types and modules, the extending code must be added/loaded before the code that is to call it. It must also be made available to the calling code by opening/importing the relevant namespaces.

Link to official documentation: https://www.playframework.com/documentation/2.5.x/ScalaWS

Statement batching is either executing multiple statements as one unit (with a normal java.sql.Statement), or a single statement with multiple sets of parameter values (with a java.sql.PreparedStatement). Statement batching allows a program to collect related statement, or in the case of prepare...

Header: YAML format, used when the script is compile to define general parameter and metadata Parameterdefinitiontitlethe title of the documentauthorThe author of the documentdateThe date of the document: Can be "r format(Sys.time(), '%d %B, %Y')"authorThe author of the docu...

convenience init(imageNamed name: String) // Create an SKSpriteNode from a named image in the assets catalogue var position: CGPoint // SKNode property, inherited by SKSpriteNode. The position of the node in the parents co-ordinate system. func addChild(_ node: SKNode) // SKNode method...

Passing by reference: public void Double(ref int numberToDouble) { } Introduction Value types Value types are the simpler of the two. Value types are often used to represent data itself. An integer, a Boolean or a point in 3D space are all examples of good value types. Value types (s...

class MyClassUsingAnother @Inject() (myOtherClassInjected: MyOtherClass) { (...) } @Singleton class MyClassThatShouldBeASingleton (...)

Swift has an official style guide: Swift.org API Design Guidelines. Another popular guide is The Official raywenderlich.com Swift Style Guide.

[ localpart "@" ] domainpart [ "/" resourcepart ] PartCommon UsageLocalpartIdentifies an XMPP entity (optional)DomainpartIdentifies the XMPP serviceResourcepartIdentifies a session of an XMPP entity (optional) XMPP addresses, more commonly known as JIDs (Jabber Identif...

One way binding from parent component to nested component: [propertyName] One way binding from nested component to parent component: (propertyName) Two-way binding (a.k.a banana box notation) : [(propertyName)]