Tutorial by Examples: t

Skips elements up to a specified position starting from the first element in a sequence. Signature of Skip: Public static IEnumerable Skip(this IEnumerable source,int count); Example int[] numbers = { 1, 5, 8, 4, 9, 3, 6, 7, 2, 0 }; var SkipFirstFiveElement = numbers.Take(5); Output: The ...

Returns elements from the given collection until the specified condition is true. If the first element itself doesn't satisfy the condition then returns an empty collection. Signature of TakeWhile(): Public static IEnumerable <TSource> TakeWhile<TSource>(this IEnumerable <TSource&gt...

let storyboard = UIStoryboard(name: "StoryboardName", bundle: nil) let vc = storyboard.instantiateViewController(withIdentifier: "ViewControllerID") as YourViewController self.present(vc, animated: true, completion: nil)

Cold observable implementation, emits true when TTS engine finishes speaking, starts speaking when subscribed. Notice that API level 21 introduces different way to perform speaking: public class RxTextToSpeech { @Nullable RxTTSObservableOnSubscribe audio; WeakReference<Context> contextR...

class MyClass{ @field:[Inject Named("the_answer")] lateinit var answer: Int } In Android Development, this is the way in which you inject dependencies into Activity, Fragment or any other object that is instantiated directly by the OS. To learn more about the @field: annotation i...

class MyClass @Inject constructor(@Named val answer: Int){ /* The nuts and bolts of your class */ }

Check environment variable value e.g. echo %JAVA_HOME% C:\Program Files\Java\jdk1.7.0_51

The vertex shader only accepts the texture coordinates as a vertex attribute and forwards the coordinates to the fragment shader. By default, it will also guarantee that the fragment will receive the properly interpolated coordinate based on its position in a triangle: layout (location = 0) in vec3...

(let [xf (comp (map inc) (filter even?))] (transduce xf + [1 2 3 4 5 6 7 8 9 10])) ;; => 30 This example creates a transducer assigned to the local xf and uses transduce to apply it to some data. The transducer add's one to each of it's inputs and only returns the ...

(def xf (filter keyword?)) Apply to a collection, returning a sequence: (sequence xf [:a 1 2 :b :c]) ;; => (:a :b :c) Apply to a collection, reducing the resulting collection with another function: (transduce xf str [:a 1 2 :b :c]) ;; => ":a:b:c" Apply to a collection, and...

If you call plt.legend() or ax.legend() more than once, the first legend is removed and a new one is drawn. According the official documentation: This has been done so that it is possible to call legend() repeatedly to update the legend to the latest handles on the Axes Fear not, though: It ...

The Rule: The user will input credentials (email and password). If credentials are valid, redirect to home page. Show an error message otherwise. How to apply technique: You can have a huge valid list of emails that could be used: [email protected] [email protected] [email protected] ... As we...

In order to clear the selection of those values which are selected using a Select2 drop down,we can use the empty() function. <select id="select2_example"> <option>Option1</option> <option>Option2</option> <option>Option3</option> </select&...

In cases where you need a common portion of the route for all routes within a controller, RoutePrefix attribute is used. In the below example, api/students part of the code is common and so we can define RoutePrefix and avoid using it repeatedly. [RoutePrefix("api/students")] public cla...

The rule An e-commerce have a 20% off offer valid for entire month of July. How to apply the technique Using the Equivalence Partition technique we could divide this as Inside July Is outside July But we can do a little better with this case. We can use the boundaries of the partition to e...

The rule Another common case we usually find and where it is useful to apply this technique are progressive rates based on values. An e-commerce has an offer that is like: 10% off for orders above US$ 80.00 15% off for orders above US$ 150.00 25% off for orders above US$ 200.00 How to appl...

Data annotations are a way of adding more contextual information to classes or members of a class. There are three main categories of annotations: Validation Attributes: add validation criteria to data Display Attributes: specify how the data should be displayed to the user Modelling Attributes...

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Once you have node.js installed on your system, you can just follow the procedure below to get a basic web server running with support for both HTTP and HTTPS! Step 1 : Build a Certificate Authority create the folder where you want to store your key & certificate : mkdir conf ...

Suppose we have an API which allows us to get object metadata in single request (getAllPets), and other request which have full data of single resource (getSinglePet). How we can query all of them in a single chain? public class PetsFetcher { static class PetRepository { List<Integer&g...