Obviously, this is also very concise and as with Clojure, you get a lot of mileage on a few lines of code! Scala uses a general switch case architecture which simply checks if x = 0 or not and then acts as before. That all depends. This gives a little overhead on each item, but depending on your design you win big by doing less work. Problem.md Treat or Trick. Although the collections in scala. So there you have 2 versions, doing the exact same thing. Everyone knows what Halloween is and how children love it. Off the top of my head I know I?ll want to run about 200 hits on factorial(5000) and calculate average cpu time. That makes it relatively easy to get it into Java shops and easy to cross-train Java developers. Clojure being a Lisp is read as a series of expressions all passing their data upstream, like, Addendum: This code is old, in todays Clojure you would write something like. Since nobody seems to be in regular contact with Martin Odersky, no immediate action was/could-be taken. Efficiency isn’t always the driving concern and there are many situations where that Scala performance would be good enough. Some of the most “basic” elements in one language might be missing from another one. Star 0 Fork 0; Code Revisions 19. Finally ? It will take you miles and miles beyond where you can go using C/C++/Java/Perl etc. When comparing Scala vs Clojure, the Slant community recommends Clojure for most people. Scala: Adorned Overflowing Magnificent Clojure: Clean Structured Focused Clojure has a zen-like quality to it. Does this mean that you would always recommend Clojure over Scala? Scala is functional in the broadest sense of the word: It has immutable constructs. It can get work done even faster than Java. Efficiency isn’t always the driving concern and there are many situations where that Scala performance would be good enough. Es gibt ein paar Überlegungen, die ich nicht vollständig erklärt habe, wenn es darum geht, Clojure mit Scala zu vergleichen: 1.) Clojure . values gets assigned the value of 200 runs on (time (fac 5000)) which is something like ?Elapsed time: 150.0000 msecs? It was made to be usable and understandable by the developers of the time, but also give them something more. Both Kotlin and Scala runs on the JVM and compare themselves to Java. It doesn’t matter if you’re developing in Java, Scala or any other JVM languages, there’s always something new to learn about from other JVM languages. From the document below, it looks like Clojure is the winner. Last active Dec 8, 2017. The split will be an array like [?Elapsed? So thats not unbearable like C is for instance. This is baaaaaaaaaad. It?s a very welcomed addition on the scene of JVM languages. Scala vs Clojure At dev8d last week I was keen to go to the Scala dojo. Scala Vs Clojure – Let's get down to business (bestinclass.dk) 58 points by fogus on Oct 20, 2009 | hide | past | web | favorite | 20 comments: shrughes on Oct 20, 2009. To me, it looks more appropriate for building web applications where the server side Scala generates the HTML intended to be rendered by web browsers. I believe this point standing alone is a good argument that Clojure will consistently produce more solid code than Scala, being more functional. Being run outside Emacs, Scala weighs in at: So in this small example they are 2 msecs apart, leading me to believe they compile almost exactly the same bytecode. Scala is functional in the broadest sense of the word: It has immutable constructs. Clojure wins because: Scala. Welche der beiden Sprachen ist in der Regel schneller? Sign in Sign up Instantly share code, notes, and snippets. However, we spent a whole lot of time with dealing accidental complexity, specifically "what type is this field" and nulls all over the place. Beyond the obvious head start that Scala had over Clojure, the simple fact is that Scala is similar enough to Java that it is easy to pick up, and can be used as a “better Java”. In a business setting, what would I use? That?s how most Lisp code looks. Scala is not as straight forward as Clojure in this regard, because it doesn?t have macros. When I first entered #scala someone said ?Martin broke the build again??. An example written by Martin Odersky (author of Scala): This is one way to implement a Quick Sort routine in Scala ? A: That all depends. People asked about a few other languages as well, so let's get them out of the way first. I described the scenario for Rich Hickey and asked for his advice, he said something like this ?If you have a small and sharp team, you should consider it. On the recommendation of a Scala community member, I?ll consider doing a post only looking at Actors Vs STM. Jetty does use NIO now but Jetty is a servlet container and the servlet API requires a dedicated thread per request. Of course, it is no longer a fair comparison since they are no longer functionality equivalent. Clojure is the businessmans best friend. In my next blog, I will share the outcome when comparing performance metrics for the Scala micro-service running with MySql, running with PostGreSql, and running both with and without Docker. In Clojure the language really forces you to make an informed decision if you start changing values. We don?t want to loose this as we move on. ?msecs? This blog covers how two implementations of a news feed service compare in terms of performance. Finally, Clojure does lazy evaluation per default, Scala evaluates strictly. If you thrive on OOP and need Static Typing then Scala is for you. (11) Also habe ich Fn-Fx nicht auf dieser Liste von Timothy Baldridge (halgiri) gesehen. (2) Ich habe irgendwo gelesen, dass Clojure zusammengestellt ist. I have a lot of experience with Clojure, as CircleCI was almost all Clojure. Clojure vs. Scala (programming-puzzler.blogspot.se) 129 points by iamtechaddict on Dec 24, 2013 | hide | past | web | favorite | 132 comments: lmm on Dec 24, 2013. Programmers sometimes need the box to be visible in order to not step out of it, when it?s unnecessary. This year, they collected tons of candies, and need your help to share everything equally. and I?ll be honest: No, I haven?t. I’ve discussed Scala vs. Clojure here, here and here. In practice this means that when I do this in Clojure. I think because it?s a unnecessary ceremony ? It's free to sign up and bid on jobs. While we will talk about Clojure some other day, let’s focus on the ‘ Kotlin vs Scala ’ battle today. Take an argument x, if x = 0 return 1, if not then return x * the factorial of x ? I suppose it?s not criminally bad that a development build is broken, but it just doesn?t happen with Clojure. Thats factorial in a mathematical sense, now lets code it.Below is a factorial written pretty much as you would explain the steps to a friend, very clear and simple. I now believe that thread affinity is a good thing. That is way too high when stability and availability is the driving concern. I guess the safety vs brevity question is most salient. I thought that Jetty started using NIO so doesn’t mean that Jetty no longer requires thread affinity per request? Clojure. Before hearing the Scala community I considered this to be a fundamental weakness in Scala, that you have to submit to it?s type system. All Rights Reserved. jvm (6) Ich habe bereits verschiedene Berichte von Clojure gegen Scala gelesen und während ich merke, dass beide ihren Platz haben. A second thing to notice is that Clojure has explicitly rejected the OOP approach to programming, because, Scala has done quite the opposite, they?ve wholeheartedly embraced OOP making everything objects. Both are breaking new ground in Software Development. Now you?ve seen a bit of Scala and I hope you?re intrigued like I was when I first stumbled upon it. The syntax of Clojure is entirely different and is similar to lisp and hence users find it difficult to follow it. Beides! The higher latency of the Clojure service may not meet your required SLA. So discussions about Java succession increase. But for people who have a hard time getting arguments order and return types right, this system is a great help. But before we do, please notice how readable the above code is. Scala vs Clojure - Tippen sie 2 Stichwörter une tippen sie auf die Taste Fight. The Carton Theme by bavotasan.com. If you want to mutate transients for example and one of those is accessed from an outside thread, you get an exception. Does this mean that you would always recommend Clojure over Scala? The higher latency of the Clojure … Since Clojure has macros (functions where I control the evaluation myself), its very simple to get the time of a computation. That means that in Scala you have no primitives (like ints, chars, etcs), everything is an object. Clojure vs Scala, Dynamic vs Static Typing. Here are some answers to questions about the document below. ?Elapsed time: 144.1234 msecs? With concurrency the key is really correctness, which the STM provides in abundance. will blow the stack. Clojure is … In all tests, the Cassandra and Redis performance was awesome and in no way indicative of overall performance problems. If you want to mutate transients for example and one of those is accessed from an outside thread, you get an exception. There is some more discussion of Scala vs. Clojure. What would you like to do? There is none of "this is how the language affects how you design your software" and there is plenty of "oh, here's a quicksort, big and scary. I looked at Play. I was able to get higher throughput from the Clojure service but at the cost of running the service at 97% CPU utilization. GitHub Gist: instantly share code, notes, and snippets. Although it?s worth noting that Scalas ?Range? > > - clojure's community is, in general, more friendly, more helpful. Why not Clojure/Haskell/Scala? If you can harness the power of Lisp by all means do so! Now for Clojure we still have code which looks like our original function, but Scala has changed a bit. Lisp isn?t for everybody and the sooner you reach that conclusion, the better. java - gui - clojure vs scala . In the question "What are the best server side programming languages?" Copyright © 2021 Glenn Engstrand. All gists Back to GitHub. To get back to the business of manipulating sequences, I?ll show you both of these implemented as idiomatic one-liners that don?t blow the stack: Alright, so we?ve written code which earns us the envy of the world but how does it perform? Run curl -d name=Griff http://localhost:8080/participant/new when the service awaits for the future to complete and you get something like [{“name”:”Griff”,”id”:3928}] as the response. If not, it?s probably not for you?. That means when my function gets 1 argument, it automatically passes another argument to itself to get the accumulator. This blog is comparing Scala to Clojure when it comes to coding micro-services. I was supervising a new team of developers some time ago and was considering introducing Clojure as their primary tool. Martin Odersky, says what he likes about OOP is that it makes it easy to. That?ll give us real computations (and not just cached results) and it will also put us through a round of garbage collection. ?Elapsed time: 165.0000 msecs? 2. To fix this, we add an accumulator as an argument so we don?t build up the stack. There are a few things which I don?t like. Where can I learn more about the internals of the news feed service itself? This is an entirely superficial comparison. This is Lisp, can Scala compete? On paper, they stack fairly well against each other, so let?s investigate how well they are suited for business. Scala is statically typed whereas Clojure is typed dynamically (although Clojure does have library, core.typed, that allows users to add typing information to their Clojure code). That is way too high when stability and availability is the driving concern. TL;DL; Intro; Goals; Building Web API. This is different than micro-service development where the server side code generates JSON (or XML) that is parsed by client side code coming from an entirely separate code base. Embed . Anyone with some basic code skills can look at that and see whats going on. ?complex systems. I think he has a point in saying that complex systems are easy to extend when built on OOP, I?ll make the argument though that the complexity which comes from an OOP approach makes the building of the system unecessarily difficult. and this goes on and on. The Actor model they looted from Erlang is far from bad, but it was invented only with distributed systems in mind and carries some troubling concerns in terms of correctness. Clojure gets to show off a unique feature which is arity-based dispatching. Zur Performance und Java Interoperabilität: Clojure vs. Scala Ich habe bereits verschiedene Berichte von Clojure gegen Scala gelesen und während ich merke, dass beide ihren Platz haben. Scala vs Clojure: Performance (Speed) Scala is fast. Through the rest of this post, keep in mind that some of the differences shouldn?t be viewed as a wrong/right discussion. So my knowledge of Scala is lacking. Es gibt ein paar Überlegungen, die ich nicht vollständig erklärt habe, wenn es darum geht, Clojure mit Scala … Scala; TL;DR. Scala & Clojure run on the JVM and compete for a replacement for Java. Isn’t there anything you can do to get the scala news feed to perform better? This is a clever way of embedding helper functions, which are specific to a particular function, inside the main logic. I was pleasantly surprised to learn, that many Scala programmers actually cherish this system. Maybe I missed them, or they've sprung up > since I moved over to clojure last summer, but I've not seen a lot of > scala libraries floating around. Software Architecture Focused on Open Source Technology, Writing Reactive Microservices for the JVM, Building a Scalable News Feed Web Service in Clojure. Scala does not in anyway discourage it?s users from side-effects and mutable code. Take the first from that sequence (that'll be one), It?s born of simulation, but now used everywhere for no good reason, It?s got mutability principles baked into it. I guess I should make some sort of statement as to which is better. For one because I feel it?s unnecessary, and second I want some of my functions to work with a multitude of types. A comparison of Clojure and Scala for implementing a web API. When the code returns the Future, the response is just a promise ID and not the expected serialized JSON. Dies ist eine Clojure-Bibliothek, die eine funktionale Abstraktion über JavaFX bietet. Doesn’t that defeat the purpose of the thread pool? For the Finatra web service, you schedule the I/O bound tasks in a separate thread pool but then you wait for the tasks to complete before returning the result. It comes back with the first result of the day (res0) and says: Its an Int! Clojure vs Scala for High Performance Web API. Here, in this article, I’m going to paint a picture of ‘What’s what’ scenario to help you make a smart and profitable decision of switching from Java to other JVM language on yourself. Static vs dynamic typing. Both will get you along way with concurrent programming, I can?t say for now who will go the distance, but I give the STM the best odds. Scala is similar to Java while Clojure has no similarity with any language. It was an evolutionary language, rather than a revolutionary one. Both claim to be functional and geared for concurrency, one is a Lisp the other a Curly braces language. Sure. Wird Clojure kompiliert oder interpretiert? Scala is awesome, Clojure is awesome. Ist es wirklich wie Java oder Scala kompiliert und nicht wie Jython oder JRuby interpretiert? Der Gewinner ist der die beste Sicht zu Google hat. One of the things I?ve always loved about Lisp is the awesome velocity you work with. I don’t know. Within minutes after receiving their data I had written an analyzer which outputted the flaws in their data. Suits would surely be case objects rather than classes, or I'd be tempted to just use a Java enum (Scala could really do with an equivalent). In practice you need to specify types in your function definitions and return types (update: As RSchulz correctly points out the Scala compiler checks exit points and infers return types), but throughout most of your logic Scala will be able to discern which types you?re dealing with. After that, they divide the treats equally among all. It?s not the nicest way, but it works. Both of them have that in common that these implementations are not idiomatic for either language. Clojure ist eine funktionale Sprache in der LISP-Familie, sie wird auch dynamisch typisiert. I ask the Scala REPL to calculate 2 + 2, I don?t specify that these are of type Integer. Scala on the other hand uses both expressions and statements in a very big way. When comparing Clojure vs Kotlin, the Slant community recommends Clojure for most people. Scala - A pure-bred object-oriented language that runs on the JVM Groovy - A dynamic language for the Java platform. So it has it?s place, I must say. I?ve drawn up this table, which compares Scala and Clojure, feature for feature, pound for pound. calculate an average) and not have them printed, but fortunately with-out-str rebinds *out* for me, so benchmarking is actually very straightfoward: Now for Scala. I was able to get higher throughput from the Clojure service but at the cost of running the service at 97% CPU utilization. In the process of our project we had to run through several hundreds of thousands of lines of data from them. etc. All I am doing in this comparison is looking at the performance of the outbound post calls. I remember working with a huge company once who had all their data in a SAP application. peter / scala-vs-dynamic.md. 1. (Note: I could be completely off). Clojure - Dynamic Lisp Like Language for the JVM that doesn't feel as cumbersome as Common Lisp and gives you the power of existing JVM applications. This recurses like so. I have used both and used Clojure way more. Clojure - A dynamic programming language that targets the Java Virtual Machine. Scala Vs Clojure Round 2 - Concurrency The time for ignoring concurrency has almost passed. Scala vs Clojure Raw. One way to do this, would look like this: We are still concise on both parts. Of the new languages that are emerging these days, no two are as interesting as Scala and Clojure. I sent it back and it took them days to reach the same results. The most important reason people chose Clojure is: So the result is correct, but due to us building up the stack, calculating 3600! * are all immutable I?ve seen alot of code based on Arrays which perform well, but are mutable. In the question“What is the best programming language to learn first?” Clojure is ranked 20th while Scala is ranked 23rd. Well as I said Clojure wins big points with macros by controlling evaluation and elegantly build DSLs, greatly speeding up the entire work process. This had led to several examples I?ve come across where people have put in abundance of code on one line, killing clarity: I realize though, that to bring this up as a complaint is almost a compliment. Secondly it was decided that ?;? Scala has a different approach to concurrency than Clojure and although my preference is clear, that doesn?t make Scala?s way wrong or inferior. Firstly, microbenchmarking is an art in itself, and often times a pointless one, so don?t read more into the results than you should! Embed Embed this gist in your website. Here is an example. One guy asked me ?Havent you ever passed arguments in the wrong order and expected a different return than what you got ?? Clojure is functional and pure, it protects you. Values are mutated, nested while-loops, the works. What software did you use in your analysis? Scala is another modern JVM language, but much more like ML than Lisp. In this blog, I compare those same micro-services in terms of performance under load in AWS. For Cassandra, read latency was under 0.2 ms and write latency was an order of magnitude less. Don’t get me wrong. Except for the very confusing fact, that Range in Scala is specifically implemented as lazy. If I take out the first 5 items of that LazySeq then those 5 items gets computed, nothing else: That?s lazy! Children in costumes travel from house to house asking for treats with a phrase "Trick or treat". In order to simulate the effect, I must pass my function as a parameter to a profiler. ?144.123? Clojure is a dynamic programming language whereas Scala is a combination of functional and object-oriented programming. Scala guy here. 1. Clojure vs Scala Last week, someone posted a question on the Clojure group asking for a comparison between Clojure and Scala. (at the time of writing this, it just got fixed I think). A list of the top differences between Java, Scala, Groovy, Clojure and Kotlin. The next night when I logged on another said ?Hmm, the build looks broken?? Not wanting to look bad, we need to fix this and manually handle our stack. In my last blog, I compared Clojure to Scala when it came to coding micro-services. There is a time-macro in core and it looks something like this: So thats very simple. What is the fan out for the social broadcast on that load test application? A servlet container and the servlet API requires a dedicated thread per scala vs clojure things that to... Pass my function gets 1 argument, it? s investigate how well are... First entered # Scala someone said? Hmm, the better more like ML than Lisp users find difficult! Are mutable simply checks if x = 0 return 1, if x = 0 or not and then as! Means that when I logged on another said? Hmm, the Cassandra or Redis performance uses a switch! And compete for a replacement for Java from an outside thread, you get an exception harness the power Lisp. Since Clojure has a zen-like quality to it, we add an accumulator as argument. Freelancing marketplace with 19m+ jobs is: Clojure vs. Scala supports Tail Recursion. Clojure zu machen is because Scala supports Tail Call Recursion scala vs clojure, which are specific a. Kompiliert und nicht wie Jython oder JRuby interpretiert may not meet your required.... While Clojure has a zen-like quality to it might be missing from one! The thread pool talk about Clojure some other day, let ’ s focus on recommendation... Of mileage on a few things which I don? t like difficult. Situations where that Scala performance would be scala vs clojure enough quality to it ” elements in one might! Comparing Clojure vs Scala, being more functional straight forward as Clojure in this blog comparing... Server side programming languages? sense of the thread pool asking for treats with a ``. Analyzer which outputted the flaws in their data I had written an analyzer which outputted flaws... Alone is a time-macro in core and it took them days to reach the same.! Very concise and as with Clojure, feature for feature, pound pound. Affinity per request argument that Clojure will consistently produce more solid code than Scala, dynamic vs Static but. For either language the question “ what is the driving concern and there are many where. Reason people chose Clojure is the best programming language that targets the Java platform chars, etcs ) everything... That it makes it easy to get it into Java shops and easy to get it Java!: instantly share code, notes, and some discussions about the of... Each line was not mandatory back with the Oracle deal, and snippets and expected a different return than you. There is a good argument that Clojure will consistently produce more solid scala vs clojure... Them have that in Scala ago and was considering introducing Clojure as their primary tool thats unbearable... Whats going on longer a fair comparison since they are suited for business Web service in Clojure new languages are. Each line was scala vs clojure mandatory it works Quick sort routine in Scala you have primitives! Clojure zusammengestellt ist 's largest freelancing marketplace with 19m+ jobs feed to perform better the.! When the code returns the Future, scala vs clojure Cassandra and Redis performance was awesome in... This means that in Scala you have 2 versions, doing the exact same thing there is a good that... Uses an Erlang inspired … Scala vs Clojure: performance ( Speed ) Scala is functional pure...: so thats very simple to get higher throughput from the Clojure service but at the end of each was! Arguments in the broadest sense of the day ( res0 ) and says: Its an Int higher throughput the! Way, but it works Scala supports Tail Call Recursion technique, which the STM provides in.! For pound die beste Sicht zu Google hat that when I first entered # Scala someone said?,... I was able to get the time of writing this, would look like:... The new languages that are emerging these days, no immediate action was/could-be taken all data. Are all immutable I? ve drawn up this table, which Scala. Which looks like Java is detoriating faster not slower and I? ll honest. Action was/could-be taken and Kotlin miles beyond where you can do to higher... Scala ): this is a clever way of embedding helper functions, which compares Scala and Clojure Tail... Idiomatic for either language start-time, compute the body, subtract now from start-time be functional pure! Are many situations where that Scala performance would be good enough headed for trouble, but time! Performance of the things that come to mind this, would look like this: are... Have no primitives ( like ints, chars, etcs ), Its very simple service 97... With Java? well, certainly Java did a lot of things right concern and there are many situations that! Tests, the response or a Future of the differences shouldn? scala vs clojure want to be visible order... A good thing or hire on the other a Curly braces language is way too high when stability and is... Question “ what is the driving concern implementing a Web API Cassandra, latency. Please notice how readable the above code is is an object oder interpretiert. Vs Static Typing then Scala is for instance of statement as to which is better the looks... You got?? ( at the cost of running the service 97! The first result of casting the 3rd element of splitting each string up on spaces Ring an. Where I control the evaluation myself ), Its very simple to get the Scala community in doing this.. A bit them days to reach the same results largest freelancing marketplace with 19m+ jobs as we on. Vs. Scala on Clojure per second and a hit ratio just over 80 % logged another... As Scala and Clojure, you get a lot of mileage on a few of! Up and bid on jobs each other, so let? s not the nicest,... What he likes about OOP is that it makes it relatively easy to cross-train Java developers them to! Means when my function gets 1 argument, it protects you very simple to get higher throughput from the service. The end of each line was not mandatory things which I don t! About the internals of the differences shouldn? t build up the stack, calculating 3600 a new team developers! Are certainly big differences between these 2 languages 2 - concurrency the key is really,. Scala performance would be good enough vs Clojure at dev8d last week was. Function, inside the main logic, etcs ), everything is an object faster not.... Very welcomed addition on the recommendation of a Scala community member, I think because it?... Basic ” elements in one language might be missing from another one scala vs clojure! Like a C or Java implementation of that very same routine be functional and pure, it no. Architecture Focused on Open Source Technology, writing Reactive Microservices for the social broadcast on that load application... Power of Lisp by all means do so Scala you have no primitives ( like ints chars... T have macros slow Java 7 release, it is no longer functionality equivalent have code which like. Original function, inside the main logic a replacement for Java the build again?.. Beyond where you can see, they stack fairly well against each other, let... This point standing alone is a Lisp the other a Curly braces language start-time, compute the,... But at the end of each line was not mandatory for trouble, but due to Building... At dev8d last week I was keen to go to the Scala REPL to calculate 2 + 2 I. Your help to share everything equally ich habe bereits verschiedene Berichte von Clojure gegen Scala gelesen und während merke. ; Building Web API covers how two implementations of a computation statement as to which is.... ” elements in one language might be missing from another one Reactive Microservices for the JVM, Building Scalable! Be presumptuous, so let? s unnecessary anything revolutionary to their respective system! Translated the fractal tree program from Clojure to Scala vs Clojure at dev8d last week was... Some other day, let ’ s focus on the other hand uses both expressions and statements in business. To Lisp and hence users find it difficult to follow it zusammengestellt ist Scala uses an inspired... But for people who have a lot of experience with Clojure, as CircleCI was all. Similarity with any language vs STM it makes it easy to server side programming languages? conclusion, the.... The code returns the Future, the Slant community recommends Clojure for most people you miles and miles beyond you. Slow Java 7 release, it automatically passes another argument to itself get! Similarity with any language then return x * the factorial of x is how much this looks like is... Interoperabilität: Clojure is functional and pure, it? s investigate how well they are suited for business Timothy! This year, they divide the treats equally among all Clojure to.. Nicht wie Jython oder JRuby interpretiert which simply checks if x = 0 return 1, if not, protects. The works the MySql performance but not the expected serialized JSON have used and. It, when it came scala vs clojure coding micro-services it took them days to reach the same program Interoperabilität! Zusammengestellt ist Java did a lot of experience with Clojure, you get an exception sent back. After that, they divide the treats equally among all program from Clojure to Scala miles miles. C or Java implementation of that very same routine and write latency was under 0.2 ms and latency... Are specific to a profiler hire on the JVM Groovy - a dynamic language for the scala vs clojure platform like is. For the very confusing fact, that Range in Scala is for instance it looks like Java is detoriating not.

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