Getting started new to ruby 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. It also offers many scripting features to process plain text and serialized files, or manage system tasks
It is simple, straightforward, and extensible. 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.
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. 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. 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 We will fix only security issues for ruby 3.2 series until end of march 2026 Please consider upgrading to ruby 3.3 or 3.4 series 'ruby'} person # => {name Ruby} you can use a hash to give names to method arguments
When the last argument in a method call is a hash, the curly braces may be omitted:
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