vremel
Version:
JavaScript date utility library for Temporal API
36 lines • 1.37 kB
JavaScript
import { assertSameType, assertValidInterval } from "../assert.js";
import { compare } from "./_compare.js";
/**
* Checks if the given two intervals are overlapping.
* By default, it returns `true` if the end of one interval is exactly same time to the start of the other interval.
* You can pass the `inclusive` option to change this behavior.
*
* @example
* ```typescript
* const interval1 = {
* start: Temporal.PlainTime.from("00:00:00"),
* end: Temporal.PlainTime.from("08:00:00"),
* };
* const interval2 = {
* start: Temporal.PlainTime.from("08:00:00"),
* end: Temporal.PlainTime.from("16:00:00"),
* };
* areIntervalsOverlapping(interval1, interval2); // true
* areIntervalsOverlapping(interval1, interval2, { inclusive: false }); // false
* ```
*
* @param interval1
* @param interval2
* @param options
* @returns Whether two intervals are overlapping
*/
export function areIntervalsOverlapping(interval1, interval2, options) {
assertValidInterval(interval1);
assertValidInterval(interval2);
assertSameType(interval1.start, interval2.start);
const inclusive = options?.inclusive ?? true;
const threshould = inclusive ? 0 : 1;
return (compare(interval1.end, interval2.start) >= threshould &&
compare(interval2.end, interval1.start) >= threshould);
}
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