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91 lines
3.5 KiB
91 lines
3.5 KiB
import differenceInCalendarDays from '../differenceInCalendarDays/index.js';
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import format from '../format/index.js';
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import defaultLocale from '../locale/en-US/index.js';
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import subMilliseconds from '../subMilliseconds/index.js';
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import toDate from '../toDate/index.js';
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import getTimezoneOffsetInMilliseconds from '../_lib/getTimezoneOffsetInMilliseconds/index.js';
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import requiredArgs from '../_lib/requiredArgs/index.js';
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/**
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* @name formatRelative
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* @category Common Helpers
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* @summary Represent the date in words relative to the given base date.
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*
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* @description
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* Represent the date in words relative to the given base date.
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*
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* | Distance to the base date | Result |
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* |---------------------------|---------------------------|
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* | Previous 6 days | last Sunday at 04:30 AM |
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* | Last day | yesterday at 04:30 AM |
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* | Same day | today at 04:30 AM |
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* | Next day | tomorrow at 04:30 AM |
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* | Next 6 days | Sunday at 04:30 AM |
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* | Other | 12/31/2017 |
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*
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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* @param {Date|Number} date - the date to format
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* @param {Date|Number} baseDate - the date to compare with
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* @param {Object} [options] - an object with options.
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* @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
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* @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
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* @returns {String} the date in words
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* @throws {TypeError} 2 arguments required
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* @throws {RangeError} `date` must not be Invalid Date
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* @throws {RangeError} `baseDate` must not be Invalid Date
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* @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
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* @throws {RangeError} `options.locale` must contain `localize` property
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* @throws {RangeError} `options.locale` must contain `formatLong` property
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* @throws {RangeError} `options.locale` must contain `formatRelative` property
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*/
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export default function formatRelative(dirtyDate, dirtyBaseDate, dirtyOptions) {
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requiredArgs(2, arguments);
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var date = toDate(dirtyDate);
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var baseDate = toDate(dirtyBaseDate);
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var options = dirtyOptions || {};
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var locale = options.locale || defaultLocale;
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if (!locale.localize) {
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throw new RangeError('locale must contain localize property');
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}
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if (!locale.formatLong) {
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throw new RangeError('locale must contain formatLong property');
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}
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if (!locale.formatRelative) {
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throw new RangeError('locale must contain formatRelative property');
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}
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var diff = differenceInCalendarDays(date, baseDate);
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if (isNaN(diff)) {
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throw new RangeError('Invalid time value');
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}
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var token;
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if (diff < -6) {
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token = 'other';
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} else if (diff < -1) {
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token = 'lastWeek';
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} else if (diff < 0) {
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token = 'yesterday';
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} else if (diff < 1) {
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token = 'today';
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} else if (diff < 2) {
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token = 'tomorrow';
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} else if (diff < 7) {
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token = 'nextWeek';
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} else {
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token = 'other';
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}
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var utcDate = subMilliseconds(date, getTimezoneOffsetInMilliseconds(date));
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var utcBaseDate = subMilliseconds(baseDate, getTimezoneOffsetInMilliseconds(baseDate));
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var formatStr = locale.formatRelative(token, utcDate, utcBaseDate, options);
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return format(date, formatStr, options);
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} |