Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
Date#wday
wday → integer
ext/date/date_core.c
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static VALUE
d_lite_wday(VALUE self)
{
get_d1(self);
return INT2FIX(m_wday(dat));
}
Returns the day of week in range (0..6); Sunday is 0:
Example
Date.new(2001, 2, 3).wday # => 6