End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Integer#even?
int.even? → true or false
numeric.rb
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# File tmp/rubies/ruby-3.1.3/numeric.rb, line 139
def even?
Primitive.attr! 'inline'
Primitive.cexpr! 'rb_int_even_p(self)'
end
Returns true if int is an even number.