{"id":4127,"date":"2020-09-30T22:01:28","date_gmt":"2020-09-30T16:31:28","guid":{"rendered":"https:\/\/golangbyexamples.com\/?p=4127"},"modified":"2020-09-30T22:01:38","modified_gmt":"2020-09-30T16:31:38","slug":"declaring-constant-go","status":"publish","type":"post","link":"https:\/\/golangbyexamples.com\/declaring-constant-go\/","title":{"rendered":"Declaring a constant in Go (Golang)"},"content":{"rendered":"\n<p class=\"has-medium-font-size\">A constant is anything that doesn&#8217;t change its value. In Go const can be either of type string, numeric, boolean, and characters.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">A constant can be declared using the <strong>const<\/strong> keyword. An important point to be noted is that the value has to be assigned while declaring a constant. It is unlike variables where value can be assigned later.<\/p>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>Declaring a <strong>const<\/strong> along with specifying the type &#8211; It starts with a <strong>const<\/strong> keyword, followed by the name and then the type. The value must also be assigned right away as discussed above<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const c string = \"circle\"<\/code><\/pre>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>Declaring a const without specifying type &#8211; A const declared without type is an untyped constant. We will learn more about typed and untyped constant later on. For now, it&#8217;s important to know that const declared without type has a default hidden type. The constant will be given a type once it is assigned to a variable in any way (direct initialization, passing to a function, etc).<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-go\">const c = \"circle\"<\/code><\/pre>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>Declaring multiple const together<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-prismatic-blocks\"><code class=\"language-\">const (\n  c = \"circle\"\n  s = \"square\"\n)<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>A constant is anything that doesn&#8217;t change its value. In Go const can be either of type string, numeric, boolean, and characters. A constant can be declared using the const keyword. An&#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-4127","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 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Declaring a constant in Go (Golang) - 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\/declaring-constant-go\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Declaring a constant in Go (Golang) - Welcome To Golang By Example\" \/>\n<meta property=\"og:description\" content=\"A constant is anything that doesn&#8217;t change its value. 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