{"id":2574,"date":"2017-12-09T07:00:19","date_gmt":"2017-12-09T07:00:19","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=2574"},"modified":"2021-02-27T09:18:04","modified_gmt":"2021-02-27T09:18:04","slug":"short-notes-ruby-arrays-insert-append-length-index-removed","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/short-notes-ruby-arrays-insert-append-length-index-removed\/","title":{"rendered":"Short Notes &#8211; Ruby Arrays- Insert, Append, length, Index, Removed"},"content":{"rendered":"<p><strong>scmuser created the topic: Short Notes &#8211; Ruby Arrays- Insert, Append, length, Index, Removed<\/strong><\/p>\n<p>Short Notes &#8211; Ruby Arrays- Insert, Append, length, Index, Removed<\/p>\n<p>Create a Ruby Array<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\nletters = Array.new\r\nletters = &#x5B;]\r\nletters = Array.new()\r\nletters =\r\nletters = Array.new(3) ( Define how many elements you array would be)\r\nletters = Array.new(3, 'me rocks') (Define each element with default values)\r\n<\/pre>\n<p>Accessing Elements<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\nletters&#x5B;0] - accessing First element\r\nletters&#x5B;-1] - Accessing last element\r\nletters&#x5B;-2]\r\n<\/pre>\n<p>Inserting\/Adding elements<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\nletters = Array.new() OUTPUT = &#x5B;&quot;a&quot;, &quot;b&quot;, &quot;c&quot;]\r\nletters.insert(0, 1) OUTPUT &#x5B;1, &quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;d&quot;]\r\nletters.insert(-1, 'd') OUTPUT &#x5B;1, &quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;d&quot;]\r\nletters &lt;&lt; 'e' OUTPUT &#x5B;1, &quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;d&quot;, &quot;e&quot;]\r\nletters.push('f') OUTPUT &#x5B;1, &quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;d&quot;, &quot;e&quot;, &quot;f&quot;]\r\n<\/pre>\n<p>Removing Elements<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\nletters.pop - Remove the last elements\r\nletters.delete_at(2) - Delete the element of particular index\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>scmuser created the topic: Short Notes &#8211; Ruby Arrays- Insert, Append, length, Index, Removed Short Notes &#8211; Ruby Arrays- Insert, [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[504],"tags":[178],"class_list":["post-2574","post","type-post","status-publish","format-standard","hentry","category-ruby-programming","tag-ruby"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Short Notes - Ruby Arrays- Insert, Append, length, Index, Removed - scmGalaxy<\/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:\/\/www.scmgalaxy.com\/tutorials\/short-notes-ruby-arrays-insert-append-length-index-removed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Short Notes - Ruby Arrays- Insert, Append, length, Index, Removed - scmGalaxy\" \/>\n<meta property=\"og:description\" content=\"scmuser created the topic: Short Notes &#8211; 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