String alternatives in ruby
%Q
Alternative for double-quoted strings. Below are equivalent
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| name_of_object = "John"
puts %Q(Hello World #{name_of_object})
puts "Hello World John"
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You could replace ( and ) with non-alphanumeric characters.
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| puts %Q!Hello World!
puts %Q[Hello World]
puts %Q+Hello World+
puts %/Hello World/ # you can use also.
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%q
Alternative for single-quoted strings. But it can’t do expression substitution
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| puts %q(Hello World #{name_of_object}) # output: Hello World #{name_of_object}
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%W
Used for double-quoted array.
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| world = "World"
%W(Hello #{world} John\ Smile) # output: ["Hello", "World", "John Smile"]
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%w
Used for single-quoted array. No expression substitution
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| %w(Hello #{world} Good) # output: ["Hello", "#{world}", "Good"]
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%s
Used for symbols. No expression substitution.
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| %s(foo) # output: :foo
%s(foo bar) # output: :"foo bar"
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