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Ruby on Rails
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<p>Ruby on Rails (simplified as Rails) is a <a href="/facts/Server-side/JqukWyaA">server-side</a> <a href="/facts/Web_application_framework/8f1CVHDX">web application framework</a> written in <a href="/facts/Ruby_(programming_language)/BeYSaPSR">Ruby</a> under the <a href="/facts/MIT_License/8llAQtlk">MIT License</a>. Rails is a <a href="/facts/Model%25E2%2580%2593view%25E2%2580%2593controller/vRbMXjMm">model–view–controller</a> (MVC) framework, providing default structures for a <a href="/facts/Database/VYcpkevb">database</a>, a <a href="/facts/Web_service/qxrwqB3D">web service</a>, and <a href="/facts/Web_page/5JK7xQLe">web pages</a>. It encourages and facilitates the use of <a href="/facts/Web_standards/3U9MLjD1">web standards</a> such as <a href="/facts/JSON/bs1rUAhd">JSON</a> or <a href="/facts/XML/clNgUfWk">XML</a> for data transfer and <a href="/facts/HTML/sSc3fT78">HTML</a>, <a href="/facts/CSS/tA90XBQo">CSS</a> and <a href="/facts/JavaScript/XhhIIEsl">JavaScript</a> for user interfacing. In addition to MVC, Rails emphasizes the use of other well-known <a href="/facts/Software_engineering/KX6cE9kz">software engineering</a> <a href="/facts/Software_design_pattern/mV7r4egw">patterns</a> and paradigms, including <a href="/facts/Convention_over_configuration/ByfLmJ2v">convention over configuration</a> (CoC), <a href="/facts/Don%2527t_repeat_yourself/pUF8abIM">don't repeat yourself</a> (DRY), and the <a href="/facts/Active_record_pattern/pwFVYuBb">active record pattern</a>. </p><p>Ruby on Rails' emergence in 2005 greatly influenced web app development, through innovative features such as seamless database <a href="/facts/Table_(database)/5INvK1Vd">table</a> creations, <a href="/facts/Schema_migration/cHLu0rmE">migrations</a>, and <a href="/facts/Scaffold_(programming)/8I46SxrC">scaffolding</a> of views to enable rapid application development. Ruby on Rails' influence on other <a href="/facts/Web_framework/8f1CVHDX">web frameworks</a> remains apparent today, with many frameworks in other languages borrowing its ideas, including <a href="/facts/Django_(web_framework)/TjPPmvSg">Django</a> in <a href="/facts/Python_(programming_language)/YbuGqofa">Python</a>; <a href="/facts/Catalyst_(software)/2dX5uf0g">Catalyst</a> in <a href="/facts/Perl/fx31kjlT">Perl</a>; <a href="/facts/Laravel/nc3vYq0J">Laravel</a>, <a href="/facts/CakePHP/GfHu3DxM">CakePHP</a> and <a href="/facts/Yii/zdMWjem1">Yii</a> in <a href="/facts/PHP/vU6YRJX0">PHP</a>; <a href="/facts/Grails_(framework)/J2QV6vIn">Grails</a> in <a href="/facts/Apache_Groovy/vGAckbte">Groovy</a>; <a href="/facts/Phoenix_(web_framework)/7RDeFI7S">Phoenix</a> in <a href="/facts/Elixir_(programming_language)/vX1J3cgf">Elixir</a>; <a href="/facts/Play_Framework/kf8eygKu">Play</a> in <a href="/facts/Scala_(programming_language)/ebL8o6AK">Scala</a>; and <a href="/facts/Sails.js/Ua08ouC5">Sails.js</a> in <a href="/facts/Node.js/FKzhV4Qa">Node.js</a>. </p><p>Well-known sites that use Ruby on Rails include <a href="/facts/Airbnb/EP95k6Rr">Airbnb</a>, <a href="/facts/Archive_of_Our_Own/59wqhmwa">Archive of our Own</a>, <a href="/facts/Crunchbase/ajJHyy2S">Crunchbase</a>, <a href="/facts/Dribbble/v4pdmp5G">Dribbble</a>, <a href="/facts/GitHub/n1hNCsc3">GitHub</a>, <a href="/facts/Twitch_(service)/mpXWXcTj">Twitch</a> and <a href="/facts/Shopify/hN7LoGPn">Shopify</a>. </p>