nil.rationalize([eps]) â (0/1) Instance Public methods Returns zero as a rational. The optional argument eps is always ignored.

nil.to_a â [] Instance Public methods Always returns an empty array. nil.to_a #=> []

nil.to_c â (0+0i) Instance Public methods Returns zero as a complex.

nil.to_f â 0.0 Instance Public methods Always returns zero. nil.to_f #=> 0.0

nil.to_h â {} Instance Public methods Always returns an empty hash. nil.to_h #=> {}

nil.to_i â 0 Instance Public methods Always returns zero. nil.to_i #=> 0

nil.to_r â (0/1) Instance Public methods Returns zero as a rational.

nil.to_s â "" Instance Public methods Always returns the empty string.

false | obj â true or falsenil | obj â true or false Instance Public methods OrâReturns false if obj is nil or false; true otherwise.

NKF.guess(str) => encoding Class Public methods Returns guessed encoding of str by nkf routine.