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RUBY
ruby check if exists
apple = 1 defined?(apple) # "local-variable" defined?(bacon) # nil
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Ruby ::
PG::DatatypeMismatch: ERROR: column "price" cannot be cast automatically to type numeric HINT: You might need t
Ruby ::
ruby/rails file get line number
Ruby ::
rails form select
Ruby ::
create rails project with postgres
Ruby ::
rails logger color
Ruby ::
rails update without callback
Ruby ::
ruby filter
Ruby ::
rails string to date
Ruby ::
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Ruby ::
ruby run bash command
Ruby ::
autoload lib directory rails
Ruby ::
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Ruby ::
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Ruby ::
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Ruby ::
rails faker url
Ruby ::
Rails validations: unique scope
Ruby ::
ruby array randomly display
Ruby ::
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Ruby ::
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Ruby ::
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Ruby ::
Ruby Regular Expressions
Ruby ::
rails array pop first n elements
Ruby ::
rails api
Ruby ::
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Ruby ::
rspec factory create_list with association
Ruby ::
generate float array in ruby
Ruby ::
rails add element to array
Ruby ::
find records using the IN expression in Rails
Ruby ::
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R ::
r how to import tsv file
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