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The koans walk you along the path to enlightenment in order to learn ruby

The goal is to learn the ruby language, syntax, structure, and some common functions and libraries. 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 This is a list of ruby releases

The shown dates correspond to the publication dates of the english versions of release posts and may differ from the actual creation dates of the source tarballs. 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 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

Each of these methods takes optional argument format, which has zero or more embedded format specifications (see below). 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. '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: