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node_modules/flowbite-datepicker/extras/twoDigitToFullYear/twoDigitToFullYear.js
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node_modules/flowbite-datepicker/extras/twoDigitToFullYear/twoDigitToFullYear.js
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/**
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* Convert 2-digit year to 4-digit year
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* By default, 2-digit year will be converted to a year in the 100-year
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* period ending 50 years after the current year. The target 100-year period
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* can be changed by specifying base date and the length of the future side.
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* @param {Number} year - 2-digit year
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* @param {Number} [futureSideSpan] - number of yeas in the future side of
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* the target 100-year period. Default: 50
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* @param {Date} [baseDate] - base date to caliculate the target 100-year
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* period. if omitted, the current date is used.
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* @return {Number} 4-digit year
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*/
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export function twoDigitToFullYear(year, futureSideSpan = 50, baseDate = undefined) {
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if (isNaN(year) || year > 99 || year < 0) {
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return year;
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}
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const date = baseDate instanceof Date && !isNaN(baseDate) ? baseDate : new Date();
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const currentYear = date.getFullYear();
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const endOfCurrent = currentYear + futureSideSpan;
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let century = Math.floor(endOfCurrent / 100) * 100;
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if (year > endOfCurrent % 100) {
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century -= 100;
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}
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return year + century;
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}
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