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
In the playground you can try any ruby code you like The official ruby documentation is included. 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. 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). 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 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.
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