On the official website, Ruby is described as “A dynamic, open-source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write”, which is accurate.<\/p>\n
Ruby has been losing popularity to Python despite sharing many of the same characteristics, but it remains widely adopted by the Linux and hacking communities (many exploits were written in Ruby).<\/p>\n
Working with strings:<\/strong><\/p>\n Booleans and Numbers:<\/strong><\/p>\n Float (decimals):<\/strong><\/p>\n Absence of a value:<\/strong><\/p>\n Escaping characters, changing cases, getting information, and indexes:<\/strong><\/p>\n Math operations:<\/strong><\/p>\n Prompting for input and converting to numbers:<\/strong><\/p>\n Working with arrays:<\/strong><\/p>\n Dictionary \/ Hash:<\/strong><\/p>\n Creating and calling functions with an IF statement:<\/strong><\/p>\n While looping:<\/strong><\/p>\n Looping through a list:<\/strong><\/p>\n For looping:<\/strong><\/p>\n Handling errors:<\/strong><\/p>\n Classes and objects:<\/strong><\/p>\n Classes, attributes, and constructors:<\/strong><\/p>\n Parent and child classes:<\/strong><\/p>\n Creating modules (libraries) of functions:<\/strong><\/p>\n Importing\/requiring functions from a module:<\/strong><\/p>\n Interactive Ruby:<\/strong><\/p>\n On the official website, Ruby is described as “A dynamic, open-source programming language with a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2556","post","type-post","status-publish","format-standard","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/posts\/2556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dft.wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2556"}],"version-history":[{"count":3,"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/posts\/2556\/revisions"}],"predecessor-version":[{"id":5704,"href":"https:\/\/dft.wiki\/index.php?rest_route=\/wp\/v2\/posts\/2556\/revisions\/5704"}],"wp:attachment":[{"href":"https:\/\/dft.wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dft.wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dft.wiki\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}varName = \"!\"\r\nintName = 5\r\nprint (\"String\" + varName)\r\nputs (\"String\" + intName.to_s)<\/pre>\n
booleanName = true\r\nintName = -99\r\nintName += 9\r\nputs intName.abs()<\/pre>\n
floatName = 0.00001\r\nputs floatName.round()<\/pre>\n
notAssignedValue = nil<\/pre>\n
varName = \"Test print \\\".\"\r\nputs varName.upcase()\r\nvarName = \"New line.\\n\"\r\nputs varName.downcase()\r\nvarName = \" Extra spaces. \"\r\nputs varName.strip()\r\nputs varName.length()\r\nputs varName.include? \"Extra\"\r\nputs varName.index(\"E\")\r\nputs varName[5]\r\nputs varName[5,5]<\/pre>\n
puts Math.sqrt(64)\r\nputs Math.log(10)<\/pre>\n
strName = gets()\r\nstrName = gets.chomp()\r\nputs strName.to_i\r\nputs strName.to_f<\/pre>\n
arrayName = [\"A\",\"B\",\"C\"]\r\nputs arrayName\r\narrayName = Array.new\r\narrayName[0] = \"a\"\r\nputs arrayName.length()\r\nputs arrayName.include? \"a\"\r\nputs arrayName.sort()\r\nputs arrayName.reverse()<\/pre>\n
hashName = {\r\n \"A\" => \"X\",\r\n \"B\" => \"Y\",\r\n \"C\" => \"Z\"\r\n}\r\nputs hashName[\"B\"]<\/pre>\ndef methodName(message, print=false)\r\n if print and message\r\n puts message\r\n elsif !message\r\n puts \"no message\"\r\n else\r\n puts \"not set to print\"\r\n end\r\n return \"first\", \"second\"\r\nend\r\nputs methodName(\"Hi!\")\r\nputs methodName(\"Hi!\",1)\r\nputs methodName(false,1)<\/pre>\n
while true\r\n puts \"Executed!\"\r\n break\r\nend<\/pre>\n
listName = [\"M\",\"N\",\"O\"]\r\nfor line in listName\r\n puts line\r\nend\r\nlistName.each do |line|\r\n puts line\r\nend<\/pre>\n
for i in 1..3\r\n puts i\r\nend\r\n3.times do |i|\r\n puts i\r\nend<\/pre>\n
begin\r\n x = 1 \/ 0\r\nrescue ZeroDivisionError\r\n puts \"Impossible to divide by Zero\"\r\nrescue TypeError => e\r\n puts e\r\nend<\/pre>\n
class ClassName\r\n attr_accessor :attr1, :attr2, :attr3\r\nend\r\nobjName = ClassName.new()\r\nobjName.attr1 = \"Text\"\r\nobjName.attr2 = 10\r\nobjName.attr3 = 0.5\r\nputs (objName.attr1 + objName.attr2.to_s + objName.attr3.to_s)<\/pre>\n
class ClassName2\r\n attr_accessor :attr1, :attr2, :attr3\r\n def initialize(attr1, attr2, attr3)\r\n @attr1 = attr1\r\n @attr2 = attr2.to_i\r\n @attr3 = attr3.to_f\r\n end\r\n def print\r\n puts (@attr1 + @attr2.to_s + @attr3.to_s)\r\n end\r\nend\r\nobjName2 = ClassName2.new(\"Text\",10,0.5)\r\nobjName2.print<\/pre>\n
class ClassName3 < ClassName\r\n def print\r\n puts (@attr1 + @attr2.to_s + @attr3.to_s)\r\n end\r\nend\r\nobjName3 = ClassName3.new()\r\nobjName3.attr1 = \"Text\"\r\nobjName3.attr2 = 10\r\nobjName3.attr3 = 0.5\r\nobjName3.print<\/pre>\n
module ModuleName\r\n def functionName\r\n puts \"Executed!\"\r\n end\r\nend\r\ninclude ModuleName\r\nModuleName.functionName()<\/pre>\n
require \"\/home\/user\/file.rb\"\r\nrequire_relative \"file.rb\"\r\ninclude ModuleName\r\nModuleName.functionName()<\/pre>\n
irb -v\r\nirb<\/pre>\n","protected":false},"excerpt":{"rendered":"