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Contents
# frozen_string_literal: true
class String
# Change the case of characters randomly
# @return [String] the case modified string
# @example
# 'SELECT * FROM'.randomcase # => "SElECt * frOm"
# 'SELECT * FROM'.randomcase # => "selECT * FROm"
def randomcase
chars.map { |c| rand(0..1).zero? ? c.downcase : c.upcase }.join
end
# Change the case of characters randomly in place as described for
# {String#randomcase}.
def randomcase!
replace(randomcase)
end
# Change one characte on two upcase and the other downcase
# @param shift [Integer] 0: 1st character will be downcase, 1: 1st character
# will be upcase
# @return [String] the case modified string
# @example
# 'SELECT * FROM'.alternatecase # => "sElEcT * FrOm"
# 'SELECT * FROM'.alternatecase(1) # => "SeLeCt * fRoM"
def alternatecase(shift = 0)
chars.each_with_index.map { |c, i| (i + shift).even? ? c.downcase : c.upcase }.join
end
# Change one characte on two upcase and the other downcase in place as
# described for {String#alternatecase}.
def alternatecase!(shift = 0)
replace(alternatecase(shift))
end
end
Version data entries
14 entries across 14 versions & 1 rubygems