Class: Integer

Inherits:
Object
  • Object
show all
Defined in:
lib/casual_support/integer/to_hex.rb

Instance Method Summary collapse

Instance Method Details

#to_hex(width = nil) ⇒ String

Converts integer to a zero-padded lower-case hexadecimal string. If the length of the raw hexadecimal string exceeds the desired width, the string will be returned unaltered (without padding or truncation).

Without the need for zero-padding, this method is ~7% slower than just to_s(16). However, when zero-padding is required, it is ~230% faster than sprintf(“%0#{width}x”, self), and ~30% faster than sprintf(FIXED_FORMAT_STRING, self).

Parameters:

  • width (Integer) (defaults to: nil) —

    desired width of the zero-padded string

Returns:

  • (String) —

    hexadecimal string



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# File 'lib/casual_support/integer/to_hex.rb', line 15

def to_hex(width = nil)
  h = self.to_s(16)
  width ? h.rjust(width, '0'.freeze) : h
end