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1. Top results related to examples of declarative programming languages

   • Examples of compiled programming languages with modern features for the real world [please vote for reopen]

     Top Answer

     Answered Aug 18, 2011 · 5 votes

     Haskell.

     Source: http://www.realworldhaskell.org/

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     1/5

   • Programming Languages that Make Use of Special Characters

     Top Answer

     Answered Jul 15, 2010 · 7 votes

     Special characters have any place in a modern, non-academic language?

     Yes, but because on most desktops the support for special characters is still awful (bad editors, bad fonts, you name it),

     • You better be planning ten years ahead.
     • You better be very sure there is a good, usable alternative using only ASCII characters.

     I would never advocate a preprocessor: there is too much temptation and room for abuse, and unless it is done very carefully, a preprocessor makes it much harder to write good IDEs and static-analysis tools.

     Some people like a postprocessor, i.e., a prettyprinter, that takes sequences of ASCII characters and renders them as something else. While I have always found this style dreadfully confusing, it is quite popular and successful among some Haskell programmers.

     Other Answers

     Answered Jul 14, 2010 · 4 votes

     In my opinion they have no place in a language, but definitely belong in a default preprocessor. You may get the APL-keyboard problem though. (and possible visual ambiguity).

     A limited example of this as a pre/post processing would be cweaved code.

     Other Answers

     Answered Jul 15, 2010 · 3 votes

     The special characters ← and ⇒ are reserved words in Scala. ← is used for introducing generator bindings whereas ⇒ is used in the function definitions to separate parameter lists from the function body.

     Examples:

     for { word ← List("Hello", "World") character ← word} println(character)-val square = (x: Int) ⇒ x * x-

     It should be noted that Scala compiler also allows the ASCII alternatives of the above symbols (i.e. <- and =>).

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     2/5

   • Programming languages that define the problem instead of the solution?

     Top Answer

     Answered Aug 06, 2009 · 31 votes

     What about Declarative Programming? Excerpt from wikipedia article (emphasis added):

     In computer science, declarative programming is a programming paradigm that expresses the logic of a computation without describing its control flow. Many languages applying this style attempt to minimize or eliminate side effects by describing what the program should accomplish, rather than describing how to go about accomplishing it. This is in contrast with imperative programming, which requires an explicitly provided algorithm.

     Other Answers

     Answered Jul 14, 2010 · 4 votes

     In my opinion they have no place in a language, but definitely belong in a default preprocessor. You may get the APL-keyboard problem though. (and possible visual ambiguity).

     A limited example of this as a pre/post processing would be cweaved code.

     Other Answers

     Answered Jul 15, 2010 · 3 votes

     The special characters ← and ⇒ are reserved words in Scala. ← is used for introducing generator bindings whereas ⇒ is used in the function definitions to separate parameter lists from the function body.

     Examples:

     for { word ← List("Hello", "World") character ← word} println(character)-val square = (x: Int) ⇒ x * x-

     It should be noted that Scala compiler also allows the ASCII alternatives of the above symbols (i.e. <- and =>).

     Check all answers on Stack Overflow

     3/5

   • Declarative programming in java

     Top Answer

     Answered Apr 22, 2012 · 6 votes

     As a commenter said, your example is more functional programming than declarative programming, although the two are similar in some respects. In real declarative programming, you'd be more results oriented -- you'd be specifying what to do with the interesting elements in the list, rather than transforming the list for its own sake. A rule engine like Jess is an example of a declarative programming system (disclaimer, I'm the author of Jess.)

     To answer your one simple question: yes. All functional or declarative programming systems involve a runtime system that has to be implemented on the real computer the program is running on. Since the real computer is invariably an imperative von Neumann machine, that runtime system has to be written imperatively. It is therefore an additional layer of abstraction between your program and the hardware.

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     4/5

   • Programming Languages for writing GUI application

     Top Answer

     Answered Dec 04, 2009 · 12 votes

     You could reverse your question : what toolkits are there, and which languauges do they support?

     For Example GTK : (from wikipedia)

     C GTK+ C++ gtkmm Ruby ruby-gtk2 Python PyGTK Java java-gnome .NET Gtk# PHP PHP-GTK Perl Gtk2-Perl

     You can find support for many languages if you explore these other widget toolkits :

     Juce — An extensive cross-platform UI toolkitFLTK — A light, cross platform, non-native widget toolkitFOX toolkit — A fast, open source, cross-platform widget toolkitGTK+ — The GIMP toolkit, a widget toolkit used by GNOME applicationsIUP_(software) -- IUP cross platform static/dynamic library C/LUA, Lua (MIT) licenceJX Application FrameworkMicrosoft Foundation Class - The most commonly used widgeting toolkit for Windows.MotifObject Windows Library & OWLNextQt — A widget toolkit used by KDEStandard Widget Toolkit — SWT for JavaSwing — Java widget toolkitTk — Toolkit part of the Tcl - project and often used by Perl and Python programmersUltimate++Visual Component LibrarywxWidgets — A free widget toolkitXForms

     Other Answers

     Answered Jul 14, 2010 · 4 votes

     In my opinion they have no place in a language, but definitely belong in a default preprocessor. You may get the APL-keyboard problem though. (and possible visual ambiguity).

     A limited example of this as a pre/post processing would be cweaved code.

     Other Answers

     Answered Jul 15, 2010 · 3 votes

     The special characters ← and ⇒ are reserved words in Scala. ← is used for introducing generator bindings whereas ⇒ is used in the function definitions to separate parameter lists from the function body.

     Examples:

     for { word ← List("Hello", "World") character ← word} println(character)val square = (x: Int) ⇒ x * x

     It should be noted that Scala compiler also allows the ASCII alternatives of the above symbols (i.e. <- and =>).

     Check all answers on Stack Overflow

     5/5

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2. en.wikipedia.org › wiki › Declarative_programmingDeclarative programming - Wikipedia

   en.wikipedia.org › wiki › Declarative_programming

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   Common declarative languages include those of database query languages (e.g., SQL, XQuery), regular expressions, logic programming (e.g. Prolog, Datalog, answer set programming), functional programming, configuration management, and algebraic modeling systems.

3. stackoverflow.com › questions › 129628What is declarative programming? - Stack Overflow

   stackoverflow.com › questions › 129628

   • Cached

   Declarative programming is when you write your code in such a way that it describes what you want to do, and not how you want to do it. It is left up to the compiler to figure out the how. Examples of declarative programming languages are SQL and Prolog.

   Code sample

   #myImageId {

   height: 100px;

   width: 100px;

   }

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4. www.techtarget.com › searchapparchitecture › tipThe basics of working with declarative programming languages

   www.techtarget.com › searchapparchitecture › tip

   Mar 21, 2022 · Many languages fall under the banner of declarative programming, but some of the most widely used include HTML, SQL, CSS and XML. Other examples include a mix of functional and logic programming languages, such as Prolog, Haskell, Miranda, XQuery and Lisp. Pros and cons of declarative programming.

5. People also ask

   What are some examples of declarative programming languages?

   • Many languages fall under the banner of declarative programming, but some of the most widely used include HTML, SQL, CSS and XML. Other examples include a mix of functional and logic programming languages, such as Prolog, Haskell, Miranda, XQuery and Lisp.

   The basics of working with declarative programming languages

   www.techtarget.com/searchapparchitecture/tip/The-basics-of-working-with-declarative-programming-languages

   See all results for this question

   How do I get Started with declarative programming?

   • If you're interested in getting started with declarative programming, here are some tips to help you get started: The first step to getting started with declarative programming is to choose a declarative language. Some popular declarative languages include Haskell, Prolog, SQL, and XSLT.

   Understanding Declarative Programming A Comprehensive Guide

   declarative.dev/article/Understanding_Declarative_Programming_A_Comprehensive_Guide.html

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   What are some examples of declarative domain-specific languages?

   • Well-known examples of declarative domain-specific languages (DSLs) include the yacc parser generator input language, QML, the Make build specification language, Puppet 's configuration management language, regular expressions, Datalog, answer set programming and a subset of SQL (SELECT queries, for example).

   Declarative programming - Wikipedia

   en.wikipedia.org/wiki/Declarative_programming

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   What is a declarative programming style?

   • Declarative programming is a non-imperative style of programming in which programs describe their desired results without explicitly listing commands or steps that must be performed. Functional and logic programming languages are characterized by a declarative programming style.

   Declarative programming - Wikipedia

   en.wikipedia.org/wiki/Declarative_programming

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6. www.educative.io › blog › declarative-vs-imperativeDeclarative vs imperative programming: 5 key differences

   www.educative.io › blog › declarative-vs-imperative

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   Declarative vs imperative programming: Code example. We’ve discussed the key differences between imperative and declarative programming. Let’s look at a simple code example. For this example, we’ll use Python.

7. www.ionos.com › declarative-programmingDeclarative programming: Advantages and disadvantages - IONOS

   www.ionos.com › declarative-programming

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   Feb 24, 2020 · The best-known declarative programming languages are: Prolog. Lisp. Haskell. Miranda. Erlang. SQL (in the broadest sense) The different declarative programming languages can, in turn, be divided into two paradigms: functional programming languages and logic programming languages.

8. themewaves.com › declarative-programming-languagesDeclarative Programming Languages: A Comprehensive Guide

   themewaves.com › declarative-programming-languages

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   Jul 28, 2023 · Examples of popular declarative languages include SQL, Prolog, and XSLT. These languages allow developers to express logic concisely and leverage built-in optimization capabilities.

9. declarative.dev › article › UnderstandingUnderstanding Declarative Programming A Comprehensive Guide

   declarative.dev › article › Understanding

   • Cached

   The first step to getting started with declarative programming is to choose a declarative language. Some popular declarative languages include Haskell, Prolog, SQL, and XSLT. Learn the Basics