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. We intend to release the latest stable ruby version (currently ruby 3.4) every two months following the most recent release
Ruby 3.4.6 is scheduled for september, 3.4.7 for november, and 3.4.8 for january. Encode # => ruby™ t 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
When the last argument in a method call is a hash, the curly braces may be omitted: 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. Following this release (3.4.4), ruby 3.4.5 is scheduled for july, 3.4.6 for september, 3.4.7 for november, and 3.4.8 for january. For this case, the pin operator ^ can be used, to tell ruby “just use this value as part of the pattern” Expectation = 18 case [1, 2] in ^expectation, *rest matched
#{expectation} end #=> not matched 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.
OPEN
