Playing with ruby code in interactive sessions like this is a terrific way to learn the language. Some members of the ruby community feel that you should avoid package managers to install ruby and that you should use dedicated tools instead. 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
Ruby was first developed by matz (yukihiro matsumoto) in 1993, and is now developed as open source It runs on multiple platforms and is used all over the world especially for web development. 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. What’s here trigonometric functions ::cos Returns the cosine of the given argument
Returns the tangent of the given argument Returns the arc cosine of the given. Operators in ruby, operators such as +, are defined as methods on the class Literals define their methods within the lower level, c language Ruby objects can define or overload their own implementation for most operators Class foo < string def + (str) self
Ruby code can raise exceptions Most often, a raised exception is meant to alert the running program that an unusual (i.e., exceptional) situation has arisen, and may need to be handled. Class \struct provides a convenient way to create a simple class that can store and fetch values The first argument, a string, is the name of th Please see the github releases for further details This version is a last version of normal maintenance for ruby 3.2 series
Please consider upgrading to ruby 3.3 or 3.4 series Ruby 3.3.8 released posted by nagachika on 9 apr 2025 ruby 3.3.8 has been released Please see the for further details This system is hosting the development of ruby language and its related projects You must register your account and activate it via an email before reporting issues. 'ruby'} person # => {name
Ruby} you can use a hash to give names to method arguments Def some_method (hash) p hash end some_method ({foo When the last argument in a method call is a hash, the curly braces may be omitted:
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