Tutorial by Examples

var syntaxTree = CSharpSyntaxTree.ParseText( @"using System; using System.Collections; using System.Linq; using System.Text; namespace HelloWorldApplication { class Program { static void Main(string[] args) { Console.WriteLine(""Hello World""); } } }"); ...

In general, IBOutlets are used to connect an user interface object to another object, in this case a UIViewController. The connection serves to allow for the object to be affected my code or events programmatically. This can be done simply by using the assistant from a storyboard and control-clickin...

you can custom class below one private final String PROTOCOL_CONTENT_TYPE = String.format("application/json; charset=%s", PROTOCOL_CHARSET); public BooleanRequest(int method, String url, String requestBody, Response.Listener<Boolean> listener, Response.ErrorListener errorList...

If the shift count value is a negative value then both left shift and right shift operations are undefined1: int x = 5 << -3; /* undefined */ int x = 5 >> -3; /* undefined */ If left shift is performed on a negative value, it's undefined: int x = -5 << 3; /* undefined */ I...

This is how the left fold is implemented. Notice how the order of the arguments in the step function is flipped compared to foldr (the right fold): foldl :: (b -> a -> b) -> b -> [a] -> b foldl f acc [] = acc foldl f acc (x:xs) = foldl f (f acc x) xs -- = foldl f (acc...

Detailed instructions on getting sequelize.js set up or installed.

Less has been one of the most popular CSS Pre-processors, and has also been widely deployed in numerous front-end frameworks like Bootstrap, Foundation, etc. The Less Compiler is a JavaScript based compiler, which can be obtained from a Content Delivery Network: <script src="//cdnjs.cloudfl...

#Region directive can now be placed inside methods and can even span over methods, classes and modules. #Region "A Region Spanning A Class and Ending Inside Of A Method In A Module" Public Class FakeClass 'Nothing to see here, just a fake class. End Class Module Extensi...

The implicit keyword is used to overload a conversion operator. For example, you may declare a Fraction class that should automatically be converted to a double when needed, and that can be automatically converted from int: class Fraction(int numerator, int denominator) { public int Numerator...

Here are all access modifiers in venn diagrams, from more limiting to more accessible: Access ModifierDiagramprivateinternalprotectedprotected internalpublic Below you could find more information.

The following example is a sample Less file which shows how variables are declared and used, how mixins are defined and called in Less. /* Variables */ @color-base: #87ceeb; /* Simple mixin to set border */ .set-border(@width; @style; @color) { border: @width @style darken(@color, 10%); ...

The MPI_Barrier operation performs a synchronization among the processes belonging to the given communicator. That is, all the processes from a given communicator will wait within the MPI_Barrier until all of them are inside, and at that point, they will leave the operation. int res; res = MPI_B...

Dynamic Arrays Adding and reducing variables on an array dynamically is a huge advantage for when the information you are treating does not have a set number of variables. Adding Values Dynamically You can simply resize the Array with the ReDim Statement, this will resize the array but to if you ...

Jagged Arrays NOT Multidimensional Arrays Arrays of Arrays(Jagged Arrays) are not the same as Multidimensional Arrays if you think about them visually Multidimensional Arrays would look like Matrices (Rectangular) with defined number of elements on their dimensions(inside arrays), while Jagged arra...

In F# there are many options for creating data pipelines, for example: List, Seq and Array. What data pipeline is preferable from memory usage and performance perspective? In order to answer this we'll compare performance and memory usage using different pipelines. Data Pipeline In order to me...

Install symfony correctly as guided above. Start symfony server if you are not installed in www directory. Ensure http://localhost:8000 is working if symfony server is used. Now it is ready to play with simplest example. Add following code in a new file /src/AppBundle/Controller/MyController.p...

By adding the following extension to array indices can be accessed without knowing if the index is inside bounds. extension Array { subscript (safe index: Int) -> Element? { return indices ~= index ? self[index] : nil } } example: if let thirdValue = array[safe: 2] { ...

Variables exist within a specific scope, much like in in JavaScript. If you declare a variable outside of a block, it can be used throughout the sheet. $blue: dodgerblue; .main { background: $blue; p { background: #ffffff; color: $blue; } } .header { ...

In the below example value in map $color-array is treated as list of pairs. SCSS Input $color-array:( black: #4e4e4e, blue: #0099cc, green: #2ebc78 ); @each $color-name, $color-value in $color-array { .bg-#{$color-name} { background: $color-value; } } ...

Due to very specific way of actor instantiation, injecting dependencies into an actor instance is not trivial. In order to intervene in actor instantiation and allow Spring to inject dependencies one should implement a couple of akka extensions. First of those is an IndirectActorProducer: import ak...