End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Float#zero?

float.zero? → true or false

# File tmp/rubies/ruby-3.1.3/numeric.rb, line 305
def zero?
  Primitive.attr! 'inline'
  Primitive.cexpr! 'RBOOL(FLOAT_ZERO_P(self))'
end

Returns true if float is 0.0.

See also #truncate #to_s also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0