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 王天杨
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import { toDate } from "./toDate.mjs";
/**
* The {@link areIntervalsOverlapping} function options.
*/
/**
* @name areIntervalsOverlapping
* @category Interval Helpers
* @summary Is the given time interval overlapping with another time interval?
*
* @description
* Is the given time interval overlapping with another time interval? Adjacent intervals do not count as overlapping unless `inclusive` is set to `true`.
*
* @param intervalLeft - The first interval to compare.
* @param intervalRight - The second interval to compare.
* @param options - The object with options
*
* @returns Whether the time intervals are overlapping
*
* @example
* // For overlapping time intervals:
* areIntervalsOverlapping(
* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
* { start: new Date(2014, 0, 17), end: new Date(2014, 0, 21) }
* )
* //=> true
*
* @example
* // For non-overlapping time intervals:
* areIntervalsOverlapping(
* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
* { start: new Date(2014, 0, 21), end: new Date(2014, 0, 22) }
* )
* //=> false
*
* @example
* // For adjacent time intervals:
* areIntervalsOverlapping(
* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
* { start: new Date(2014, 0, 20), end: new Date(2014, 0, 30) }
* )
* //=> false
*
* @example
* // Using the inclusive option:
* areIntervalsOverlapping(
* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
* { start: new Date(2014, 0, 20), end: new Date(2014, 0, 24) }
* )
* //=> false
*
* @example
* areIntervalsOverlapping(
* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
* { start: new Date(2014, 0, 20), end: new Date(2014, 0, 24) },
* { inclusive: true }
* )
* //=> true
*/
export function areIntervalsOverlapping(intervalLeft, intervalRight, options) {
const [leftStartTime, leftEndTime] = [
+toDate(intervalLeft.start),
+toDate(intervalLeft.end),
].sort((a, b) => a - b);
const [rightStartTime, rightEndTime] = [
+toDate(intervalRight.start),
+toDate(intervalRight.end),
].sort((a, b) => a - b);
if (options?.inclusive)
return leftStartTime <= rightEndTime && rightStartTime <= leftEndTime;
return leftStartTime < rightEndTime && rightStartTime < leftEndTime;
}
// Fallback for modularized imports:
export default areIntervalsOverlapping;
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