Is the string empty or blank?
- size
- empty?
- blank?
empty = ""
puts empty.size
puts empty.empty?
puts empty.blank?
whitespaces = " \t\n\n\t"
puts whitespaces.size
puts whitespaces.empty?
puts whitespaces.blank?
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empty = ""
puts empty.size
puts empty.empty?
puts empty.blank?
whitespaces = " \t\n\n\t"
puts whitespaces.size
puts whitespaces.empty?
puts whitespaces.blank?