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

instance method

NilClass#to_i

nil.to_i → 0

# File tmp/rubies/ruby-3.1.3/nilclass.rb, line 10
def to_i
  return 0
end

Always returns zero.

Example

nil.to_i   #=> 0

See also #to_h #to_r #to_f #to_s also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0