End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Date#iso8601
iso8601 → string
ext/date/date_core.c
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static VALUE
d_lite_iso8601(VALUE self)
{
return strftimev("%Y-%m-%d", self, set_tmx);
}
Equivalent to strftime with argument '%Y-%m-%d' (or its shorthand form '%F');
Example
Date.new(2001, 2, 3).iso8601 # => "2001-02-03"
Date#xmlschema is an alias for Date#iso8601.