5 Answered Questions for the topic Ruby On Rails

05/29/20

Describe the four pillars of object oriented programming
Encapsulation, Inheritance, Abstraction, Polymorphism
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Expert Answers •1
Ruby On Rails Ruby Scaffolding

06/06/19

Undo scaffolding in Rails?
Is there any way to 'undo' the effects of a scaffold command in Rails?
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Expert Answers •1
Ruby On Rails Ruby

05/30/19

How do I create an average from a Ruby array?
How would get find an average from an array?If I have the array: [0,4,8,2,5,0,2,6]Averaging would give me 3.375.Thanks!
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Ruby On Rails Ruby Rails Activerecord

03/18/19

How do I get the name of a Ruby class?
How can I get the class name from an ActiveRecord object?I have: result = User.find(1)I tried: result.class # => User(id: integer, name: string ...) result.to_s # =>... more
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Expert Answers •1
Ruby On Rails Ruby

03/18/19

Convert string to symbol-able in Ruby?
Symbols are usually represented as such :book_author_titlebut if I have a string: "Book Author Title"is there a built in way in rails/Ruby to convert it into a symbol where I can use the `:` ... more
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Expert Answers •1

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