Getting started new to ruby The set class implements a collection of unordered values with no duplicates Start with our getting started guide
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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. 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. 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. Each of these methods takes optional argument format, which has zero or more embedded format specifications (see below). 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'} 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:
Two symbol literals a symbol represents a name inside the ruby interpreter
See symbol for more details on what symbols are and when ruby creates them internally You may reference a symbol using a colon You can redistribute and/or modify it under the same terms as ruby
