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@northguild/gmt

plain/interval

  • intervalAbutsDate: Return true when two half-open date intervals [aStart, aEnd) and [bStart, bEnd) are exactly adjacent — one ends where the other starts, so they share nothing and leave no gap.
  • intervalAbutsDateTime: Return true when two half-open datetime intervals [aStart, aEnd) and [bStart, bEnd) are exactly adjacent — one ends where the other starts, so they share nothing and leave no gap.
  • intervalAbutsTime: Return true when two half-open time intervals [aStart, aEnd) and [bStart, bEnd) are exactly adjacent — one ends where the other starts, so they share nothing and leave no gap.
  • intervalContainsDate: Return true when pointOrStart lies in the half-open interval [intervalStart, intervalEnd) (3-arg), or when the inner interval [innerStart, innerEnd) lies within it (4-arg).
  • intervalContainsDateTime: Return true when pointOrStart lies in the half-open interval [intervalStart, intervalEnd) (3-arg), or when the inner interval [innerStart, innerEnd) lies within it (4-arg).
  • intervalContainsTime: Return true when pointOrStart lies in the half-open interval [intervalStart, intervalEnd) (3-arg), or when the inner interval [innerStart, innerEnd) lies within it (4-arg).
  • intervalCountDate: Count how many unit boundaries a date interval crosses.
  • intervalCountDateTime: Count how many unit boundaries a date-time interval crosses.
  • intervalCountTime: Count how many unit boundaries a time interval crosses.
  • intervalDifferenceDate: Return the portion(s) of interval A not covered by interval B.
  • intervalDifferenceDateTime: Return the portion(s) of interval A not covered by interval B.
  • intervalDifferenceTime: Return the portion(s) of interval A not covered by interval B.
  • intervalDivideEquallyDate: Split a date interval into n equal-length sub-intervals.
  • intervalDivideEquallyDateTime: Split a datetime interval into n equal-length sub-intervals.
  • intervalDivideEquallyTime: Split a time interval into n equal-length sub-intervals.
  • intervalEngulfsDate: Return true when the half-open interval B [bStart, bEnd) lies within the half-open interval A [aStart, aEnd) — every day of B is also in A.
  • intervalEngulfsDateTime: Return true when the half-open interval B [bStart, bEnd) lies within the half-open interval A [aStart, aEnd) — every moment of B is also in A.
  • intervalEngulfsTime: Return true when the half-open interval B [bStart, bEnd) lies within the half-open interval A [aStart, aEnd) — every clock time of B is also in A.
  • intervalFromDurationDate: Construct a date interval from a single point plus an ISO 8601 duration, anchored at either end.
  • intervalFromDurationDateTime: Construct a datetime interval from a single point plus an ISO 8601 duration, anchored at either end.
  • intervalFromDurationTime: Construct a time interval from a single point plus an ISO 8601 duration, anchored at either end.
  • intervalIntersectionDate: Return the overlapping span of two date intervals, or null when they do not overlap.
  • intervalIntersectionDateTime: Return the overlapping span of two datetime intervals, or null when they do not overlap.
  • intervalIntersectionTime: Return the overlapping span of two time intervals, or null when they do not overlap.
  • intervalLengthDate: Return the exact length of a date interval in unit, as a real (possibly fractional) number.
  • intervalLengthDateTime: Return the exact length of a datetime interval in unit, as a real (possibly fractional) number.
  • intervalLengthTime: Return the exact length of a time interval in unit, as a real (possibly fractional) number.
  • intervalOverlappingDaysDate: Return how many distinct calendar dates two date intervals share.
  • intervalOverlappingDaysDateTime: Return how many distinct calendar dates two datetime intervals share.
  • intervalsOverlapDate: Return true when the half-open date intervals [aStart, aEnd) and [bStart, bEnd) share at least one day.
  • intervalsOverlapDateTime: Return true when the half-open datetime intervals [aStart, aEnd) and [bStart, bEnd) share at least one moment.
  • intervalsOverlapTime: Return true when the half-open time intervals [aStart, aEnd) and [bStart, bEnd) share at least one clock time.
  • intervalSplitAtDate: Split a date interval at arbitrary points, producing consecutive sub-intervals.
  • intervalSplitAtDateTime: Split a datetime interval at arbitrary points, producing consecutive sub-intervals.
  • intervalSplitAtTime: Split a time interval at arbitrary points, producing consecutive sub-intervals.
  • intervalUnionDate: Return the combined span of two date intervals, or null when they are disjoint.
  • intervalUnionDateTime: Return the combined span of two datetime intervals, or null when they are disjoint.
  • intervalUnionTime: Return the combined span of two time intervals, or null when they are disjoint.
  • intervalXorAllDate: Return the symmetric difference across a list of date intervals — the set of dates covered by an odd number of the input intervals.
  • intervalXorAllDateTime: Return the symmetric difference across a list of datetime intervals — the set of instants covered by an odd number of the input intervals.
  • intervalXorAllTime: Return the symmetric difference across a list of time intervals — the set of clock times covered by an odd number of the input intervals.
  • intervalXorDate: Return the symmetric difference of two date intervals — time covered by exactly one interval.
  • intervalXorDateTime: Return the symmetric difference of two datetime intervals — time covered by exactly one interval.
  • intervalXorTime: Return the symmetric difference of two time intervals — time covered by exactly one interval.
  • isValidDateInterval: Return true if start and end form a valid date interval — both parseable as ISO PlainDate strings and start <= end.
  • isValidDateTimeInterval: Return true if start and end form a valid datetime interval — both parseable as ISO PlainDateTime strings and start <= end.
  • isValidTimeInterval: Return true if start and end form a valid time interval — both parseable as ISO PlainTime strings and start <= end.
  • mergeIntervalsDate: Collapse a list of date intervals into the minimum set of non-overlapping intervals.
  • mergeIntervalsDateTime: Collapse a list of datetime intervals into the minimum set of non-overlapping intervals.
  • mergeIntervalsTime: Collapse a list of time intervals into the minimum set of non-overlapping intervals.
  • splitIntervalByUnitDate: Split a date interval into sub-intervals of amount × unit.
  • splitIntervalByUnitDateTime: Split a date-time interval into sub-intervals of amount × unit.
  • splitIntervalByUnitTime: Split a time interval into sub-intervals of amount × unit.