{"id":12978,"date":"2023-08-24T12:56:30","date_gmt":"2023-08-24T07:26:30","guid":{"rendered":"https:\/\/golangbyexamples.com\/?p=12978"},"modified":"2023-08-24T12:56:35","modified_gmt":"2023-08-24T07:26:35","slug":"string-bool-ruby","status":"publish","type":"post","link":"https:\/\/golangbyexamples.com\/string-bool-ruby\/","title":{"rendered":"Ruby convert string to bool"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy counter-decimal ez-toc-light-blue\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-1\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/golangbyexamples.com\/string-bool-ruby\/#Overview\" title=\"Overview\">Overview<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Overview\"><\/span><strong>Overview<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"has-medium-font-size\">In the Ruby language, strings &#8220;true&#8221; and &#8220;false&#8221; are interpreted as true when used in the <strong>if<\/strong> condition. See example below<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-ruby\">if \"false\"\n   puts \"yes\"\nend<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Output<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-ruby\">\"yes\"<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">&#8220;false&#8221; evaluates to true<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Therefore it becomes important to handle string &#8220;false&#8221; or string &#8220;true&#8221; correctly.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">We can create a custom method that can return boolean true or false based on the content of the string<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-ruby\">def true?(str)\n  str.to_s.downcase == \"true\"\nend<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">We can try out the above function<\/p>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-ruby\">true?(\"false\")\n => false<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\">true?(\"true\")\n => true<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">Also, note that for strings other than &#8220;false&#8221; it will give true in return, but the function could be easily modified to handle that case<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Table of Contents Overview Overview In the Ruby language, strings &#8220;true&#8221; and &#8220;false&#8221; are interpreted as true when used in the if condition. See example below Output &#8220;false&#8221; evaluates to true Therefore&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[1],"tags":[],"class_list":["post-12978","post","type-post","status-publish","format-standard","hentry","category-tech"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ruby convert string to bool - Welcome To Golang By Example<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/golangbyexamples.com\/string-bool-ruby\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ruby convert string to bool - Welcome To Golang By Example\" \/>\n<meta property=\"og:description\" content=\"Table of Contents Overview Overview In the Ruby language, strings &#8220;true&#8221; and &#8220;false&#8221; are interpreted as true when used in the if condition. 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