2.0 Design Patterns in Ruby

Second part describes the main moments in ruby. Some interesting things.

Anybody know how to use %q and %Q. But what is the difference. %Q - creates double quotes and %q creates single quotes.

That is the difference from rescue and raise

	begin
	a = b / 0
	rescue ZeroDivisionError
	puts (‘Fatal error’)
	end

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Rescue catch the error. And raise - create new Error in your condition

	if b == 0
	raise ZeroDivisiobError
	end
	return a /b

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require ‘account.rb’ -  you can use class from account.rb like it is described in the same file.