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foreseaz/ruby-notes.rb

Created June 6, 2016 03:34
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ruby notes
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ruby-notes.rb
# notes 1
# how Rails change_table works
# http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_table
def functionA(a)
b = 2
yield functionB(a,b)
end
def functionB(a, b)
a + b
end
puts functionA(1) {|t| t + 3 } # 1 + 2 + 3 = 6
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