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mergeIntervalsDateTime

mergeIntervalsDateTime(intervals: { start: string; end: string; }[]): { start: string; end: string; }[]
import { mergeIntervalsDateTime } from "@northguild/gmt/plain/interval";

Collapse a list of datetime intervals into the minimum set of non-overlapping intervals.

  • List-form generalization of intervalUnionDateTime, which is pairwise only.
  • Intervals are merged when they overlap or share an endpoint exactly (adjacent intervals ARE merged).
  • Order of the input list does not matter; the result is sorted by start.
  • Returns [] for an empty list.
  • Returns [] when intervals is not an array, when any element is not a { start, end } record of valid ISO PlainDateTime strings, or when any element has start > end.
Parameter Type Description
intervals { start: string; end: string; }[] array of { start, end } records

the minimum set of non-overlapping { start, end } records, sorted by start, or [] on invalid input

mergeIntervalsDateTime([{ start: "2024-01-01T00:00:00", end: "2024-01-10T00:00:00" }, { start: "2024-01-05T00:00:00", end: "2024-01-15T00:00:00" }]) // [{ start: "2024-01-01T00:00:00", end: "2024-01-15T00:00:00" }]
mergeIntervalsDateTime([]) // []
mergeIntervalsDateTime([{ start: "2024-01-10T00:00:00", end: "2024-01-01T00:00:00" }]) // []

plain/interval/mergeIntervalsDateTime.ts