Module: StringUtility

Extended by:
StringUtility
Included in:
StringUtility
Defined in:
lib/string_utility.rb

Constant Summary collapse

STRING_VALS = 
('A'..'F').to_a.freeze
INT_VALS = 
(0..9).to_a.freeze
COMBINED_VALS = 
(STRING_VALS + INT_VALS).freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.random_color_six ⇒ String

Gets a random six-digit hexadecimal web color string.

Returns:

  • (String) —

    See #random_color_three



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# File 'lib/string_utility.rb', line 76

def self.random_color_six
  random_color(6)
end

.random_color_three ⇒ String

Gets a random three-digit hexadecimal web color string.

Returns:

  • (String) —

    A random hexadecimal.



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# File 'lib/string_utility.rb', line 70

def self.random_color_three
  random_color(3)
end

.random_line(path) ⇒ String

Gets a random line in a file. This will include newlines and similar characters, so you may want to chomp the result.

Parameters:

  • path (String) —

    The path to the file.

Returns:

  • (String) —

    A random line in the file.



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# File 'lib/string_utility.rb', line 63

def self.random_line(path)
  lines = File.readlines(path)
  lines[rand(lines.count)]
end

Instance Method Details

#random_color(limit) ⇒ Object (private) 



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# File 'lib/string_utility.rb', line 86

def random_color(limit)
  str = '#'
  limit.times do
    str << COMBINED_VALS.sample.to_s
  end
  str
end