method

base36

v6.1.7.7 - Show latest stable - Class: SecureRandom

base36(n = 16)

public

SecureRandom.base36 generates a random base36 string in lowercase.

The argument n specifies the length of the random string to be generated.

If n is not specified or is nil, 16 is assumed. It may be larger in the future. This method can be used over base58 if a deterministic case key is necessary.

The result will contain alphanumeric characters in lowercase.

p SecureRandom.base36 # => "4kugl2pdqmscqtje"
p SecureRandom.base36(24) # => "77tmhrhjfvfdwodq8w7ev2m7"

# File activesupport/lib/active_support/core_ext/securerandom.rb, line 38
  def self.base36(n = 16)
    SecureRandom.random_bytes(n).unpack("C*").map do |byte|
      idx = byte % 64
      idx = SecureRandom.random_number(36) if idx >= 36
      BASE36_ALPHABET[idx]
    end.join
  end

base36

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