class HelloRubyCalculator::Calculator
Attributes
args[R]
Public Instance Methods
divide(*args)
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# File lib/hello_ruby_calculator/calculator.rb, line 26 def divide *args @args = args validate_params args.reduce(:/) end
multiply(*args)
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# File lib/hello_ruby_calculator/calculator.rb, line 19 def multiply *args @args = args validate_params args.reduce(:*) end
subtract(*args)
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# File lib/hello_ruby_calculator/calculator.rb, line 12 def subtract *args @args = args validate_params args.reduce(:-) end
sum(*args)
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# File lib/hello_ruby_calculator/calculator.rb, line 5 def sum *args @args = args validate_params args.reduce(:+) end
Private Instance Methods
only_numbers?()
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# File lib/hello_ruby_calculator/calculator.rb, line 34 def only_numbers? @args.all?{ |arg| arg.is_a? Fixnum } end
validate_params()
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# File lib/hello_ruby_calculator/calculator.rb, line 38 def validate_params raise EmptyParams if @args.empty? raise WrongParams unless only_numbers? end