End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Date#mday
d.mday → fixnum
ext/date/date_core.c
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static VALUE
d_lite_mday(VALUE self)
{
get_d1(self);
return INT2FIX(m_mday(dat));
}
Returns the day of the month (1-31).
Example
Date.new(2001,2,3).mday #=> 3