Created
April 4, 2024 04:42
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Quick and easy dates ranges overlap check
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export function isRangesOverlap( | |
firstRange: [Date, Date], | |
secondRange: [Date, Date] | |
): boolean { | |
const firstRangeStart = firstRange[0].getTime(); | |
const secondRangeStart = secondRange[0].getTime(); | |
const firstRangeEnd = firstRange[1].getTime(); | |
const secondRangeEnd = secondRange[1].getTime(); | |
const firstComparatorStart = firstRangeStart > secondRangeStart ? secondRangeStart : firstRangeStart; | |
const secondComparatorStart = firstRangeStart > secondRangeStart ? firstRangeStart : secondRangeStart; | |
const firstComparatorEnd = firstRangeEnd > secondRangeEnd ? secondRangeEnd : firstRangeEnd; | |
const secondComparatorEnd = firstRangeEnd > secondRangeEnd ? firstRangeEnd : secondRangeEnd; | |
// 10...20 | |
// 12...24 | |
// 10 < 12 && 24 > 20 | |
if (firstComparatorStart < secondComparatorStart && secondComparatorEnd > firstComparatorEnd) { | |
return true; | |
} | |
// 10...15 | |
// 12...13 | |
// 10 < 12 && 13 < 15 | |
if (firstComparatorStart < secondComparatorStart && secondComparatorEnd < firstComparatorEnd) { | |
return true; | |
} | |
// 10...15 | |
// 09...11 | |
// 10 > 09 && 11 < 15 | |
if (firstComparatorStart > secondComparatorStart && secondComparatorEnd < firstComparatorEnd) { | |
return true; | |
} | |
return false; | |
} | |
console.log( | |
isRangesOverlap( | |
[new Date(2024, 3, 12), new Date(2024, 3, 24)], | |
[new Date(2024, 3, 10), new Date(2024, 3, 20)], | |
) | |
) | |
console.log( | |
isRangesOverlap( | |
[new Date(2024, 3, 12), new Date(2024, 3, 13)], | |
[new Date(2024, 3, 10), new Date(2024, 3, 15)], | |
) | |
) | |
console.log( | |
isRangesOverlap( | |
[new Date(2024, 3, 9), new Date(2024, 3, 11)], | |
[new Date(2024, 3, 10), new Date(2024, 3, 15)], | |
) | |
) |
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