{"id":4140,"date":"2020-09-30T22:52:07","date_gmt":"2020-09-30T17:22:07","guid":{"rendered":"https:\/\/golangbyexamples.com\/?p=4140"},"modified":"2020-09-30T22:58:13","modified_gmt":"2020-09-30T17:28:13","slug":"multiple-constant-declarations-go","status":"publish","type":"post","link":"https:\/\/golangbyexamples.com\/multiple-constant-declarations-go\/","title":{"rendered":"Multiple constant declarations in Go (Golang)"},"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\/multiple-constant-declarations-go\/#Overview\" title=\"Overview\">Overview<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-1\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/golangbyexamples.com\/multiple-constant-declarations-go\/#Declaring_multiple_const_together_with_different_value_and_type\" title=\"Declaring multiple const together with different value and type\">Declaring multiple const together with different value and type<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-1\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/golangbyexamples.com\/multiple-constant-declarations-go\/#Declaring_multiple_const_together_with_same_value_and_type\" title=\"Declaring multiple const together with same value and type\">Declaring multiple const together with same value and type<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-1\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/golangbyexamples.com\/multiple-constant-declarations-go\/#Combining_above_two\" title=\"Combining above two\">Combining above two<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-1\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/golangbyexamples.com\/multiple-constant-declarations-go\/#Multiple_declaration_in_single_line\" title=\"Multiple declaration in single line\">Multiple declaration in single line<\/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\">Below are some of the ways of declaring multiple constant together<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Declaring_multiple_const_together_with_different_value_and_type\"><\/span><strong>Declaring multiple const together with different value and type<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const (\n  a = \"circle\"\n  b = 1\n  c float = 4.65\n)<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">The declaration can be typed or untyped. Refer to this article to understand the difference between typed and untyped constant &#8211; <a href=\"https:\/\/golangbyexamples.com\/typed-untyped-constant-golang\/\">https:\/\/golangbyexamples.com\/typed-untyped-constant-golang\/<\/a><\/p>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>a is a untyped declaration. It will be of <strong>string<\/strong> type with value <strong>&#8220;circle&#8221;<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>b is also a untyped declaration. It will be of <strong>int<\/strong> type with value <strong>1<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>c is a typed declaration. It will be of <strong>float64<\/strong> type with value as 4.65<\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Declaring_multiple_const_together_with_same_value_and_type\"><\/span><strong>Declaring multiple const together with same value and type<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const (\n  a string = \"circle\"\n  b\n)<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">When constant type and value is not provided, then it gets its type and value from previous declaration<\/p>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>a will be of <strong>string<\/strong> type with value <strong>&#8220;circle&#8221;<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>b will be of type <strong>string<\/strong> and value will be <strong>&#8220;circle&#8221;<\/strong><\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Combining_above_two\"><\/span><strong>Combining above two<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const (\n  a string \"circle\"\n  b\n  c = 1\n)<\/code><\/pre>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>a will be of <strong>string<\/strong> type with value <strong>&#8220;circle&#8221;<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>b will be of type <strong>string<\/strong> and value will be <strong>&#8220;circle&#8221;<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>c will be of <strong>int<\/strong> type with value <strong>1<\/strong><\/li><\/ul>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Multiple_declaration_in_single_line\"><\/span><strong>Multiple declaration in single line<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const a, b = 1, 2\nconst c, d int = 3, 4<\/code><\/pre>\n\n\n\n<p class=\"has-medium-font-size\">Declaration again can be typed or untyped<\/p>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li><strong>a<\/strong> will be of <strong>int<\/strong> type with value <strong>1<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li><strong>b<\/strong> will be of <strong>int<\/strong> type with value <strong>2<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li><strong>c<\/strong> will be of <strong>int<\/strong> type with value <strong>3<\/strong><\/li><\/ul>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li><strong>d <\/strong>will be of <strong>int<\/strong> type with value <strong>4<\/strong><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Table of Contents OverviewDeclaring multiple const together with different value and typeDeclaring multiple const together with same value and typeCombining above twoMultiple declaration in single line Overview Below are some of the&#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":[3,4],"class_list":["post-4140","post","type-post","status-publish","format-standard","hentry","category-tech","tag-go","tag-golang"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - 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