Ruby documentation welcome to the official ruby programming language documentation Following this release (3.4.4), ruby 3.4.5 is scheduled for july, 3.4.6 for september, 3.4.7 for november, and 3.4.8 for january. Getting started new to ruby
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Start with our getting started guide
Core classes and modules explore the essential classes and modules
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. 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.
What’s here trigonometric functions ::cos Returns the cosine of the given argument Returns the sine of the given argument Returns the tangent of the given argument
Returns the arc cosine of the given.
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. 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 3.3.8 released posted by nagachika on 9 apr 2025 ruby 3.3.8 has been released Please see the for further details Typically, you create a new class by using Class name # some code describing the class behavior end when a new class is created, an object of type class is initialized and assigned to a global constant (name in this case).
'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: Ruby is.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 Download ruby or read more. 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.
