Ruby Documentation Welcome to the official Ruby programming language documentation. Getting Started New to Ruby? Start with our Getting Started Guide. Core Classes and …

If you cannot compile your own Ruby, and you do not want to use a third-party tool, you can use your system’s package manager to install Ruby. Some members of the Ruby community feel …

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.

See class Float for the constants that affect Ruby’s floating-point arithmetic. What’s Here Trigonometric Functions ::cos: Returns the cosine of the given argument. ::sin: Returns the …

Ruby is copyrighted free software by Yukihiro Matsumoto <[email protected]>. You can redistribute it and/or modify it under either the terms of the 2-clause BSDL (see the file BSDL), or the …

Operators In Ruby, operators such as +, are defined as methods on the class. Literals define their methods within the lower level, C language. String class, for example. Ruby objects can define …

Formats for Dates and Times Several Ruby time-related classes have instance method strftime, which returns a formatted string representing all or part of a date or time: Date#strftime. …

Syck was the original YAML implementation in Ruby’s standard library developed by why the lucky stiff. You can still use Syck, if you prefer, for parsing and emitting YAML, but you must …

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