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Ruby comes with a program that will show the results of any ruby statements you feed it

Playing with ruby code in interactive sessions like this is a terrific way to learn the language. 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 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 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. 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

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 sine of the given argument Returns the tangent of the given argument Returns the arc cosine of the given.

You can build ruby in any directory including the source directory, except win32 directory in the source directory This is restriction originating in the path search method of nmake. 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. The ruby processing system rdoc, for example, has one that can be used elsewhere Other popular template processors may found in the template engines page of the ruby toolbox.

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. 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 '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: