{"id":38653,"date":"2024-11-20T05:35:09","date_gmt":"2024-11-20T05:35:09","guid":{"rendered":"https:\/\/www.railscarma.com\/?p=38653"},"modified":"2024-11-20T05:36:48","modified_gmt":"2024-11-20T05:36:48","slug":"guia-para-principiantes-de-ruby-case-statement","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/es\/blog\/guia-para-principiantes-de-ruby-case-statement\/","title":{"rendered":"Gu\u00eda para principiantes sobre la declaraci\u00f3n de casos en Ruby"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"38653\" class=\"elementor elementor-38653\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a9882c7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a9882c7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ef570b1\" data-id=\"ef570b1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fecff75 elementor-widget elementor-widget-text-editor\" data-id=\"fecff75\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> en Ruby es una herramienta vers\u00e1til y poderosa para manejar m\u00faltiples condiciones en un formato limpio y legible. Tanto si eres principiante como si s\u00f3lo necesitas un repaso, esta gu\u00eda te llevar\u00e1 a trav\u00e9s de los conceptos b\u00e1sicos de <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> con ejemplos pr\u00e1cticos para afianzar su comprensi\u00f3n.<\/span><\/p>\n<h2><b>\u00bfQu\u00e9 es una declaraci\u00f3n de caso Ruby?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> es una alternativa a la sentencia <\/span><span style=\"font-weight: 400;\">if-elsif-else<\/span><span style=\"font-weight: 400;\"> dise\u00f1ada para que el c\u00f3digo sea m\u00e1s conciso y f\u00e1cil de leer. Eval\u00faa una expresi\u00f3n y ejecuta c\u00f3digo en funci\u00f3n de las condiciones coincidentes.<\/span><\/p>\n<h3><b>Sintaxis b\u00e1sica<\/b><\/h3>\n<pre><span style=\"font-weight: 400;\">expresi\u00f3n case\ncuando condici\u00f3n1<br><\/span><span style=\"font-weight: 400;\">&nbsp;&nbsp;# C\u00f3digo a ejecutar si la condici\u00f3n1 es verdadera<br><\/span><span style=\"font-weight: 400;\">cuando condici\u00f3n2<br><\/span><span style=\"font-weight: 400;\">&nbsp;&nbsp;# C\u00f3digo a ejecutar si la condici\u00f3n2 es verdadera<br><\/span><span style=\"font-weight: 400;\">dem\u00e1s<br><\/span><span style=\"font-weight: 400;\">&nbsp;&nbsp;# C\u00f3digo a ejecutar si no se cumplen las condiciones<br><\/span><span style=\"font-weight: 400;\">fin<\/span><\/pre>\n<p><\/p>\n<h3><b>Ejemplo 1: Caso simple<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">rub\u00ed<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">Copiar c\u00f3digo<br><\/span><span style=\"font-weight: 400;\">d\u00eda = \"lunes\"<br><\/span><span style=\"font-weight: 400;\">d\u00eda del caso<br><\/span>cuando \"Lunes\"\n pone \"\u00a1Inicio de la semana laboral!\"\nsi es \"viernes\n  pone \"\u00a1Casi fin de semana!\"\nsi no\n  pone \"Un d\u00eda m\u00e1s\".\nfin<\/pre>\n<p><\/p>\n<p><b>Producci\u00f3n:<\/b><b><br><\/b><span style=\"font-weight: 400;\">Comienzo de la semana laboral.<\/span><\/p>\n<p><\/p>\n<h3><b>Ejemplo 2: Utilizaci\u00f3n de rangos<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Puede hacer coincidir rangos de valores dentro de un <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> declaraci\u00f3n.<\/span><\/p>\n<pre>grado = 85\n\ngrado del caso\n\ncuando 90..100\n\n  pone \"Excelente\"\n\ncuando 80..89\n\n  pone \"Bueno\"\n\ncuando 70..79\n\n  pone \"Medio\"\n\nsi no\n\n  puts \"Necesita mejorar\"\n\nend<\/pre>\n<p><\/p>\n<p><b>Producci\u00f3n:<\/b><b><br><\/b><span style=\"font-weight: 400;\">Bien<\/span><\/p>\n<p><\/p>\n<h3><b>Ejemplo 3: Varias condiciones en una sola l\u00ednea<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Combine las condiciones con comas para simplificar.<\/span><\/p>\n<pre>tiempo = \"lluvioso\"\n\ncase tiempo\n\ncuando \"soleado\", \"parcialmente nublado\"\n\n  pone \"\u00a1Vete a dar un paseo!\"\n\ncuando \"lluvioso\", \"tormentoso\"\n\n  pone \"Qu\u00e9date en casa\".\n\nsi no\n\n  pone \"Comprueba la previsi\u00f3n\".\n\nend<\/pre>\n<p><\/p>\n<p><b>Producci\u00f3n:<\/b><b><br><\/b><span style=\"font-weight: 400;\">Qu\u00e9date en casa.<\/span><\/p>\n<p><\/p>\n<h3><b>Ejemplo 4: Utilizaci\u00f3n de <\/b><b>caso<\/b><b> con <\/b><b>entonces<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Para frases m\u00e1s cortas, utilice <\/span><span style=\"font-weight: 400;\">entonces<\/span><span style=\"font-weight: 400;\"> para la ejecuci\u00f3n en l\u00ednea.<\/span><\/p>\n<pre><span style=\"font-weight: 400;\">n\u00famero = 5<br><\/span><span style=\"font-weight: 400;\">n\u00famero de caso<br><\/span><span style=\"font-weight: 400;\">cuando 1 entonces pone \"Uno\"<br><\/span><span style=\"font-weight: 400;\">cuando 5 entonces pone \"Cinco\"<br><\/span><span style=\"font-weight: 400;\">else pone \"Otro n\u00famero\"<br><\/span><span style=\"font-weight: 400;\">fin<\/span><\/pre>\n<p><\/p>\n<p><b>Producci\u00f3n:<\/b><b><br><\/b><span style=\"font-weight: 400;\">Cinco<\/span><\/p>\n<p><\/p>\n<h3><b>Ejemplo 5: Comparaci\u00f3n de patrones con <\/b><b>caso<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Introducido en Ruby 2.7, el pattern matching a\u00f1ade m\u00e1s potencia a <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\n<pre>valor = [1, 2, 3]\n\ncase valor\n\nen [1, _, _]\n\n  puts \"Empieza por 1\"\n\nen [_, _, 3]\n\n  puts \"Termina con 3\"\n\nsi no\n\n  puts \"Patr\u00f3n diferente\"\n\nend\n<\/pre>\n<p><\/p>\n<p><b>Producci\u00f3n:<\/b><b><br><\/b><span style=\"font-weight: 400;\">Empieza por 1<\/span><\/p>\n<p><\/p>\n<h2><b>\u00bfCu\u00e1ndo utilizar una declaraci\u00f3n de caso Ruby?<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cuando tiene varias condiciones que evaluar.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Para mejorar la legibilidad en comparaci\u00f3n con <\/span><span style=\"font-weight: 400;\">if-elsif-else<\/span><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cuando se comparan rangos, matrices o patrones espec\u00edficos.<\/span><\/li>\n<\/ul>\n<h3><b>Consejos para dominar las declaraciones de casos<\/b><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Que sea sencillo<\/b><span style=\"font-weight: 400;\">: Evita las condiciones demasiado complejas.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Utilizar por defecto (<\/b><b>dem\u00e1s<\/b><b>)<\/b><span style=\"font-weight: 400;\">: Proporcione siempre una condici\u00f3n alternativa.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Rangos y patrones de aprovechamiento<\/b><span style=\"font-weight: 400;\">: Simplifique la l\u00f3gica con las funciones de comparaci\u00f3n de rangos y patrones de Ruby.<\/span><\/li>\n<\/ol>\n<h2><b>Conclusi\u00f3n<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ruby's <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> es una potente funci\u00f3n que simplifica el manejo de las condiciones. Tanto si eval\u00faa expresiones sencillas, rangos o patrones, dominar la sentencia <\/span><span style=\"font-weight: 400;\">caso<\/span><span style=\"font-weight: 400;\"> mejorar\u00e1 tus conocimientos de programaci\u00f3n en Ruby.&nbsp;<\/span><span style=\"font-size: 16px;\"><a href=\"https:\/\/www.railscarma.com\/es\">RielesCarma<\/a> proporciona expertos <a href=\"https:\/\/www.railscarma.com\/es\/contratar-desarrollador-de-ruby-on-rails\/\">Desarrolladores de Ruby on Rails para<\/a>r soluciones escalables y de alta calidad adaptadas a las necesidades espec\u00edficas de su proyecto.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  <div class=\"related-post slider\">\r\n        <div class=\"headline\">Art\u00edculos Relacionados<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  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Whether you&#8217;re a beginner or just need a refresher, this guide will take you through the basics of case statements, with practical examples to solidify your understanding. What is a Ruby Case Statement? A case &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/es\/blog\/ruby-regex-match-guide-with-examples\/\"> <span class=\"screen-reader-text\">Ruby Regex Match Guide (2026) con Ejemplos<\/span> Leer m\u00e1s \u00bb<\/a><\/p>","protected":false},"author":5,"featured_media":38658,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1224],"tags":[],"class_list":["post-38653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The Beginner&#039;s Guide to Ruby Case Statement - RailsCarma<\/title>\n<meta name=\"description\" content=\"Learn the basics of Ruby case statement with this beginner&#039;s guide. 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