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index - Documentation for Ruby 4. 0 Ruby Documentation Welcome to the official Ruby programming language documentation Getting Started New to Ruby? Start with our Getting Started Guide Core Classes and Modules Explore the essential classes and modules: String - Text manipulation and string utilities Symbol - Named identifiers inside the Ruby interpreter
class Regexp - Documentation for Ruby 4. 0 Identical regexp can or cannot run in linear time depending on your ruby binary Neither forward nor backward compatibility is guaranteed about the return value of this method
operators - Documentation for Ruby 4. 0 Operators In Ruby, operators such as +, are defined as methods on the class Literals define their methods within the lower level, C language String class, for example Ruby objects can define or overload their own implementation for most operators Here is an example:
building_ruby - Documentation for Ruby 4. 0 Miniruby is a version of Ruby which has no external dependencies and lacks certain features It can be useful in Ruby development because it allows for faster build times
control_expressions - Documentation for Ruby 4. 0 Ruby’s grammar differentiates between statements and expressions All expressions are statements (an expression is a type of statement), but not all statements are expressions
module Math - Documentation for Ruby 4. 0 See class Float for the constants that affect Ruby’s floating-point arithmetic What’s Here Trigonometric Functions ::cos: Returns the cosine of the given argument ::sin: Returns the sine of the given argument ::tan: Returns the tangent of the given argument Inverse Trigonometric Functions ::acos: Returns the arc cosine of the given
User Groups - Ruby Programming Language Ruby user groups are entirely devoted to Ruby They typically feature monthly meetings, a mailing list, a website, and if you’re lucky, frequent hacking sessions (meetings devoted to giving people a chance to write Ruby code)
literals - Documentation for Ruby 4. 0 Symbol Literals A Symbol represents a name inside the ruby interpreter See Symbol for more details on what symbols are and when ruby creates them internally You may reference a symbol using a colon: :my_symbol You may also create symbols by interpolation and escape sequences described in Escape Sequences with double-quotes:
methods - Documentation for Ruby 4. 0 Ruby programs must be written in a US-ASCII-compatible character set such as UTF-8, ISO-8859-1 etc In such character sets if the eighth bit is set it indicates an extended character
class Net::HTTPSession - Documentation for Ruby 4. 0 It consists of some or all of: scheme, hostname, path, query, and fragment; see URI syntax A Ruby URI::Generic object represents an internet URI It provides, among others, methods scheme, hostname, path, query, and fragment Schemes An internet URI has a scheme The two schemes supported in Net::HTTP are 'https' and 'http':