Tutorial by Examples: r

ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection"); File oFile = oClientContext.Web.GetFileByServerRelativeUrl("Default.aspx"); LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared); ...

ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection"); File oFile = oClientContext.Web.GetFileByServerRelativeUrl("Default.aspx"); LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared); ...

ClientContext oClientContext = new ClientContext("http://MyServer/sites/MySiteCollection"); File oFile = oClientContext.Web.GetFileByServerRelativeUrl("/sites/MySiteCollection/SitePages/Home.aspx "); LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(P...

Assume you've initialized a project with the following directory structure: /build app.js Then you add everything so you've created so far and commit: git init git add . git commit -m "Initial commit" Git will only track the file app.js. Assume you added a build step to your applicat...

Arrays in C can be seen as a contiguous chunk of memory. More precisely, the last dimension of the array is the contiguous part. We call this the row-major order. Understanding this and the fact that a cache fault loads a complete cache line into the cache when accessing uncached data to prevent sub...

You can order ActiveRecord query results by using .order: User.order(:created_at) #=> => [#<User id: 2, created_at: "2015-08-12 21:36:23">, #<User id: 11, created_at: "2015-08-15 10:21:48">] If not specified, ordering will be performed in ascending order. Y...

When you have a variable containing a struct, you can access its fields using the dot operator (.). However, if you have a pointer to a struct, this will not work. You have to use the arrow operator (->) to access its fields. Here's an example of a terribly simple (some might say "terribl...

extern crate serde; extern crate serde_json; #[macro_use] extern crate serde_derive; #[derive(Deserialize, Debug)] struct Request { // Use the result of a function as the default if "resource" is // not included in the input. #[serde(default="default_resource&quot...

You can give alias names to a struct: typedef struct Person { char name[32]; int age; } Person; Person person; Compared to the traditional way of declaring structs, programmers wouldn't need to have struct every time they declare an instance of that struct. Note that the name Pers...

Enums can have custom init methods that can be more useful than the default init?(rawValue:). Enums can also store values as well. This can be useful for storing the values they where initialized with and retrieving that value later. enum CompassDirection { case north(Int) case south(Int)...

[HttpPost] public ActionResult ContactUs(ContactUsModel contactObject) { // This line checks to see if the Model is Valid by verifying each Property in the Model meets the data validation rules if(ModelState.IsValid) { } return View(contactObject); } The model class p...

def addNumbers = { a, b -> a + b } addNumbers(-7, 15) // returns 8

['cat', 'dog', 'fish'].collect { it.length() } it is the default name of the parameter if you have a single parameter and do not explicitly name the parameter. You can optionally declare the parameter as well. ['cat', 'dog', 'fish'].collect { animal -> animal.length() }

Build a text report showing the main classification metrics, including the precision and recall, f1-score (the harmonic mean of precision and recall) and support (the number of observations of that class in the training set). Example from sklearn docs: from sklearn.metrics import classification_re...

Groovy has access to all java classes, in fact Groovy classes ARE Java classes and can be run by the JVM directly. If you are working on a Java project, using Groovy as a simple scripting language to interact with your java code is a no-brainer. To make things even better, nearly any Java class ca...

String literals represent null-terminated, static-duration arrays of char. Because they have static storage duration, a string literal or a pointer to the same underlying array can safely be used in several ways that a pointer to an automatic array cannot. For example, returning a string literal f...

val str = "Hello!" if (str.length == 0) { print("The string is empty!") } else if (str.length > 5) { print("The string is short!") } else { print("The string is long!") } The else-branches are optional in normal if-statements.

If-statements can be expressions: val str = if (condition) "Condition met!" else "Condition not met!" Note that the else-branch is not optional if the if-statement is used as an expression. This can also been done with a multi-line variant with curly brackets and multiple el...

When given an argument, the when-statement matches the argument against the branches in sequence. The matching is done using the == operator which performs null checks and compares the operands using the equals function. The first matching one will be executed. when (x) { "English" -...

Like if, when can also be used as an expression: val greeting = when (x) { "English" -> "How are you?" "German" -> "Wie geht es dir?" else -> "I don't know that language yet :(" } print(greeting) To be used as an express...