Cldr.Calendar.Interval.compare
You're seeing just the function
compare
, go back to Cldr.Calendar.Interval module for more information.
Specs
compare(range_1 :: Date.Range.t(), range_2 :: Date.Range.t()) :: Cldr.Calendar.interval_relation()
Compare two date ranges.
Uses Allen's Interval Algebra to return one of 13 different relationships:
Relation | Converse |
---|---|
:precedes | :preceded_by |
:meets | :met_by |
:overlaps | :overlapped_by |
:finished_by | :finishes |
:contains | :during |
:starts | :started_by |
:equals | :equals |
Arguments
range_1
is aDate.Range.t
range_2
is aDate.Range.t
Returns
An atom representing the relationship between the two ranges.
Examples
iex> Cldr.Calendar.Interval.compare Cldr.Calendar.Interval.day(~D[2019-01-01]),
...> Cldr.Calendar.Interval.day(~D[2019-01-02])
:meets
iex> Cldr.Calendar.Interval.compare Cldr.Calendar.Interval.day(~D[2019-01-01]),
...> Cldr.Calendar.Interval.day(~D[2019-01-03])
:precedes
iex> Cldr.Calendar.Interval.compare Cldr.Calendar.Interval.day(~D[2019-01-03]),
...> Cldr.Calendar.Interval.day(~D[2019-01-01])
:preceded_by
iex> Cldr.Calendar.Interval.compare Cldr.Calendar.Interval.day(~D[2019-01-02]),
...> Cldr.Calendar.Interval.day(~D[2019-01-01])
:met_by
iex> Cldr.Calendar.Interval.compare Cldr.Calendar.Interval.day(~D[2019-01-02]),
...> Cldr.Calendar.Interval.day(~D[2019-01-02])
:equals