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Agenda
- Recap / Questions
- The Ruby Standard Library
- Exercises
Ruby Monstas Session 12 Agenda Recap / Questions The Ruby - - PowerPoint PPT Presentation
Ruby Monstas Session 12 Agenda Recap / Questions The Ruby - - PowerPoint PPT Presentation
Ruby Monstas Session 12 Agenda Recap / Questions The Ruby Standard Library Exercises Recap Example: Class Person class Person irb> lucy = Person.new("Lucy", 1984) def initialize(name, year_born) =>
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Recap
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Example: Class Person
class Person def initialize(name, year_born) @name = name @year_born = year_born end def name @name end def age CURRENT_YEAR - @year_born end end irb> lucy = Person.new("Lucy", 1984) => #<Person:0x007f8b8289a868> irb> lucy.name => "Lucy" irb> lucy.age => 31
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Example: Class Person
class Person def initialize(name, year_born) @name = name @year_born = year_born end def name @name end def age CURRENT_YEAR - @year_born end end irb> lucy = Person.new("Lucy", 1984) Class Object Constructor Instance Method Instance Variable
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The Ruby Standard Library
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Ruby Distribution
The Ruby Distribution
Ruby Language (Syntax) Ruby Core (Strings, Symbols, Arrays, Hashes …) Ruby Standard Library (More advanced Classes/Features)
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The Ruby Standard Library
- More complex features than Ruby Core
- “Batteries included”
- A bit dated, but very solid
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Network libraries
- Socket (TCP, UDP)
- Web
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Advanced math libraries
- Prime number generator
- Matrices
- Complex numbers
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Data format libraries
- JSON
- XML
- YAML
- RSS
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Many more
- Date/Time
- Simple databases
- Cryptography
- Advanced data structures
- Debugging, Profiling, Introspection
- Advanced OO features
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Resources
Ruby Core documentation: http://ruby-doc.
- rg/core-2.2.3/
Ruby Standard Library documentation: http://ruby-doc.org/stdlib-2.2.3/
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