java - "built in dependency injection" in scala -

-

Hi, the following post says that "built in dependency injection" in Scala

"As a Scala and Java developer, I'm not even trying to change Scala as my main language for my next project with Java. If I have to write Java mandatory, then it's Java 8 It may be better, but if I have a choice, there are so many things (OP In the right way), which are forcing Scala beyond Lambdaas to me, which means that adding this feature to Java does not really mean anything to me. Ruby's Lambdass, so Python and Javascript, Dart and I I believe that any other modern language. I like Scala because of many things other than Lamdas that a comment is not enough.

But some people have names (some say OP

Everything is an expression, for understanding (especially with many futures, solving the callback triangle of death in a beautiful syntax) in the IMHO, the underlying C inversion, the case Class, pattern matching, tuples, the fact is that everything is equal and hashcode has already been implemented correctly (so I can put a duplicate in the map, or even an arrow as a key Am), st Writing interpolation, multiline string, default parameters, nominated parameters, Built in dependency injection , the most complex, most powerful type system in any language, I know type type (not as good as Haskell But better than non existent in Java). The fact is that I always return from a group of right type "monedic" tasks, such as thanks to CundledFrom (which is pure genius). Do not forget to pass the name logic and the ability to build a DSL. Extractors (via pattern matching) and many more.

I think Scala is to stay for at least Scala developers, I'm 100% sure that you will not find a single scala developer who will say: "Java 8 Lambda? Great, forever!" Bye slash! "The only reason I can think is time compilation and binary compatibility. If we ignore those two, then I can say that it just proves how scala is in the right direction (since Java 8 lambda and default interface methods and steam are clearly affected)

< P> Scala Java 8 would be better in interoperability, just as it supports functional interfaces and adding new built-in conversions to the Java 8 archive, along with the benefits to improve JVM Mr. raise.

I'll replace Scala as soon as I get a language that scales me and makes it better so far I have not found any such language (has been investigated Scale, Go, Cotlin, Ceylon Some of them were very promising, but since I need a JVM language, and preferably type in a static form, , These options have been narrowed very quickly)

Java 8 is still not closed, sorry. Great improvement, I am very happy for the Java developers that it may be "permission" (to be adopted by Scala in an enterprise) to use it, but this is not the idea of ​​returning to Java for Scala shop. "<]

This is not a discrete language feature. I think the author was pointing to the fact that Scala's feature set is flexible enough to support a lot of technologies which can be said

  • , build on high-quality types
  • , build on functional techniques
    • ,
  • , build on properties system
    • < Li>, build on the concept of Scala of your insight
  • In our project, we clearly clear the function value in class constructor by D.

    • This diversity is rather symbolic, designed to apply the language of Scala language to a NU. The case of very powerful concepts, mostly orthogonally, resulted in many legitimate ways to solve many problems. The challenge depends on understanding the detail and then make a wise choice for your project. Many times, this choice criteria are used internally to implement your components depends on this.


    Comments

    Post a Comment

    Popular posts from this blog

    java - org.apache.http.ProtocolException: Target host is not specified -

    -
    I have written a simple httprequest / response code and I am getting this error below: I used to type in my classpath httpclient, httpcore, common -Codecs and general logging. I am very new to Java and I do not know what's going on here. Please help me. code: import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.HttpResponse; Import org.apache.http.impl.client.HttpClientBuilder; Import org.apache.http.Header; Import org.apache.http.HttpHeaders; Public class UnshorteningUrl {public static zero main (string [] args throws exception {HttpGet request = zero; HTTP Client Client = HTTP ClientBuilder.credit (). Build (); Try {Request = New HTTP Gate ("trib.me/1lBFzSi"); HttpResponse httpResponse = client.execute (request); Header [] header = httpResponse.getHeaders (HttpHeaders.LOCATION); // Preconditions.checkState (headers.length == 1); String new url = header [0] .getValue (); System.out.println ("new url...
    Read more

    java - Gradle dependencies: compile project by relative path -

    -
    Is it possible to specify a dependency on another gradeal project in the granular (in android studios) outside the current project limits? For example, with a relative path like this: dependence {collection project ('../../ stdlib / dagger'}} MyApp (path / user / foo / workspace / mypad) The app (Path / User / Foo / Workspace / MyPass / App) And I have an Android Library Project with 3 subdomules: stdlib (path is / user / foo / Utilities (Path / User / Foo / Workspace / Stadlib / Utilis) http (Path / User / Foo / Workspace / Stadlib / HT) / Li> What I have to do is compile the Dagger, Util, http module in the MyApp project. The Stidelib Library module under heavy development And MyApp will grow in the form of Growth, so I do not want to push them into a Mewen repository. I am a little change. is likely to add another Gredle projects in some way? I will push the study library into the Maven repository after the source is in search of a temp...
    Read more

    ruby on rails - Object doesn't support #inspect when used with .include -

    -
    So I have participated in a glitch error that I do not even know how to debug. I am very new to the railing, so it has kicked my ass well when I use the .includes (school) seen by the student, it gives a blue box error, But when I look at any other model and .includes (school) , the school works just fine. class student & lt; ActiveRecord :: Base has has_many: relationships, foreign_key: "liker_id", dependent :: has_many: matches, foreign_key: "student_1_id", dependent :: deleted belong_to: school belong_to: conference belong_to: would_you_rather belong_to: home city belong_to: year is_to: Major and class school & lt; on the console activatecord :: Affiliate for the base: conference includes: respondent, class: "school", foreign_key: "rival_id" (e.g. For: School) Select SQL generated Select "School". * "School" from "school" "ID" IN (1) error message back NoMethodError: u...
    Read more