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Ajax uses the HTTP Protocol and can send requests using POST/GET methods from Client to Server. WebSocket is itself a protocol to communicate between Client and Server, distinct from HTTP. In Ajax when you send a request , server sends response for that request and connection ends. Using WebSocke...

The mask element allows you to "clip" with soft edges. You can compose masks from multible elements including text. Everything of a mask that is white will be completely opaque. Everything that is black will be completely transparent. Values between white and black will be semi transparent...

SVG Fonts are not directly supported by Browsers any more. Still they are very convenient for programmatically generating fonts such as symbol fonts or barcode fonts. There are many tools out there that allow you to convert svg fonts to any other font format. Here is a list of tools you can use ...

This is a description how you can create configuration for you own bundle in the /app/config/config.{yml,xml}

mock.Setup(expression).Returns(value) //Whenever called the method in the expression will return value ParameterDetailsexpressionLambda expression that specifies the method invocation.

JavaBeans (TM) is a pattern for designing Java class APIs that allows instances (beans) to be used in various contexts and using various tools without explicitly writing Java code. The patterns consists of conventions for defining getters and setters for properties, for defining constructors, and f...

It comes very handy to use Flux approach, when your application with ReactJS on frontend is planned to grow, because of limited structures and a little bit of new code to make state changes in runtime more easing. Flux is the application architecture that Facebook uses for building client-side web...

You can use Pentaho Data Integration (Kettle) to Transfer Data from One Database to another. Its very easy as the transformation is automatically created just by creating the connection.and it can transfer Lacs of records very quickly.

Applicative is the class of types f :: * -> * which allows lifted function application over a structure where the function is also embedded in that structure. Definition class Functor f => Applicative f where pure :: a -> f a (<*>) :: f (a -> b) -> f a -> f ...

Sometimes is more usefull make a call to a model's method in our view, so this is a way to make it

Cleaning data in R is paramount to make any analysis. whatever data you have, be it from measurements taken in the field or scraped from the web it is most probable that you will have to reshape it, transform it or filter it to make it suitable for your analysis. In this documentation, we will cove...

Manipulating directories from the command line

In this topic Spark Users can find different configurations of Spark SQL, which is the most used component of Apache Spark framework.

If you commit sensitive data, such as a password or SSH key into a Git repository, you can remove it from the history. To entirely remove unwanted files from a repository's history you can use either the git filter-branch command or the BFG Repo-Cleaner. Tell your collaborators to rebase, ...

Garbage Collection (GC) is a way of automatically reclaiming memory that is occupied by objects that are no longer needed by a program. This is in contrast with manual memory management where the programmer explicitly specifies which objects should be deallocated and returned to memory. Good GC-s...

In this topic I would like to mention all possible global variables which can be used in Apex code. Like [UserInfo Class][1]. I suggest we just list a global classes/variables and links. If you know about a global class/variable but can't find a documentation, please provide as much informati...

This example shows how to create a ViewModel and a View within the MVVM pattern and WPF, and how to bind the two together, so that each is updated whenever the other is changed.