47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
import _typeof from "@babel/runtime/helpers/esm/typeof";
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import toDate from "../toDate/index.js";
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import requiredArgs from "../_lib/requiredArgs/index.js";
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/**
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* @name min
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* @category Common Helpers
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* @summary Returns the earliest of the given dates.
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*
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* @description
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* Returns the earliest of the given dates.
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*
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* @param {Date[]|Number[]} datesArray - the dates to compare
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* @returns {Date} - the earliest of the dates
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* @throws {TypeError} 1 argument required
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*
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* @example
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* // Which of these dates is the earliest?
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* const result = min([
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* new Date(1989, 6, 10),
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* new Date(1987, 1, 11),
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* new Date(1995, 6, 2),
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* new Date(1990, 0, 1)
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* ])
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* //=> Wed Feb 11 1987 00:00:00
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*/
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export default function min(dirtyDatesArray) {
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requiredArgs(1, arguments);
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var datesArray;
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// `dirtyDatesArray` is Array, Set or Map, or object with custom `forEach` method
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if (dirtyDatesArray && typeof dirtyDatesArray.forEach === 'function') {
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datesArray = dirtyDatesArray;
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// If `dirtyDatesArray` is Array-like Object, convert to Array.
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} else if (_typeof(dirtyDatesArray) === 'object' && dirtyDatesArray !== null) {
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datesArray = Array.prototype.slice.call(dirtyDatesArray);
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} else {
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// `dirtyDatesArray` is non-iterable, return Invalid Date
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return new Date(NaN);
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}
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var result;
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datesArray.forEach(function (dirtyDate) {
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var currentDate = toDate(dirtyDate);
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if (result === undefined || result > currentDate || isNaN(currentDate.getDate())) {
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result = currentDate;
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}
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});
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return result || new Date(NaN);
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} |