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jeonghwa
369
node_modules/relative-time-format/commonjs/RelativeTimeFormat.js
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369
node_modules/relative-time-format/commonjs/RelativeTimeFormat.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = exports.UNITS = void 0;
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var _LocaleDataStore = require("./LocaleDataStore");
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var _resolveLocale = _interopRequireDefault(require("./resolveLocale"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
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function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
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function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
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// Valid time units.
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var UNITS = ["second", "minute", "hour", "day", "week", "month", "quarter", "year"]; // Valid values for the `numeric` option.
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exports.UNITS = UNITS;
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var NUMERIC_VALUES = ["auto", "always"]; // Valid values for the `style` option.
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var STYLE_VALUES = ["long", "short", "narrow"];
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/**
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* Polyfill for `Intl.RelativeTimeFormat` proposal.
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* https://github.com/tc39/proposal-intl-relative-time
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* https://github.com/tc39/proposal-intl-relative-time/issues/55
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*/
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var RelativeTimeFormat =
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/*#__PURE__*/
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function () {
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/**
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* @param {(string|string[])} [locales] - Preferred locales (or locale).
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* @param {Object} [options] - Formatting options.
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* @param {string} [options.style="long"] - One of: "long", "short", "narrow".
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* @param {string} [options.numeric="always"] - (Version >= 2) One of: "always", "auto".
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* @param {string} [options.localeMatcher="lookup"] - One of: "lookup", "best fit". Currently only "lookup" is supported.
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*/
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function RelativeTimeFormat() {
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var locales = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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_classCallCheck(this, RelativeTimeFormat);
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_defineProperty(this, "numeric", "always");
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_defineProperty(this, "style", "long");
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_defineProperty(this, "localeMatcher", "lookup");
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var numeric = options.numeric,
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style = options.style,
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localeMatcher = options.localeMatcher; // Set `numeric` option.
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if (numeric) {
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if (NUMERIC_VALUES.indexOf(numeric) < 0) {
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throw new RangeError("Invalid \"numeric\" option: ".concat(numeric));
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}
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this.numeric = numeric;
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} // Set `style` option.
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if (style) {
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if (STYLE_VALUES.indexOf(style) < 0) {
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throw new RangeError("Invalid \"style\" option: ".concat(style));
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}
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this.style = style;
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} // Set `localeMatcher` option.
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if (localeMatcher) {
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this.localeMatcher = localeMatcher;
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} // Set `locale`.
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// Convert `locales` to an array.
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if (typeof locales === 'string') {
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locales = [locales];
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} // Add default locale.
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locales.push((0, _LocaleDataStore.getDefaultLocale)()); // Choose the most appropriate locale.
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this.locale = RelativeTimeFormat.supportedLocalesOf(locales, {
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localeMatcher: this.localeMatcher
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})[0];
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if (!this.locale) {
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throw new TypeError("No supported locale was found");
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}
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this.locale = (0, _resolveLocale.default)(this.locale, {
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localeMatcher: this.localeMatcher
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}); // Use `Intl.NumberFormat` for formatting numbers (when available).
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if (typeof Intl !== 'undefined' && Intl.NumberFormat) {
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this.numberFormat = new Intl.NumberFormat(this.locale);
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}
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}
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/**
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* Formats time `value` in `units` (either in past or in future).
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* @param {number} value - Time interval value.
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* @param {string} unit - Time interval measurement unit.
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* @return {string}
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* @throws {RangeError} If unit is not one of "second", "minute", "hour", "day", "week", "month", "quarter".
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* @example
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* // Returns "2 days ago"
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* rtf.format(-2, "day")
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* // Returns "in 5 minutes"
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* rtf.format(5, "minute")
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*/
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_createClass(RelativeTimeFormat, [{
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key: "format",
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value: function format(value, unit) {
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return this.getRule(value, unit).replace('{0}', this.formatNumber(Math.abs(value)));
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}
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/**
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* Formats time `value` in `units` (either in past or in future).
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* @param {number} value - Time interval value.
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* @param {string} unit - Time interval measurement unit.
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* @return {Object[]} The parts (`{ type, value }`).
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* @throws {RangeError} If unit is not one of "second", "minute", "hour", "day", "week", "month", "quarter".
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* @example
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* // Version 1.
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* // Returns [
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* // { type: "literal", value: "in " },
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* // { type: "day", value: "100" },
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* // { type: "literal", value: " days" }
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* // ]
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* rtf.formatToParts(100, "day")
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* //
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* // Version 2.
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* // Returns [
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* // { type: "literal", value: "in " },
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* // { type: "integer", value: "100", unit: "day" },
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* // { type: "literal", value: " days" }
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* // ]
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* rtf.formatToParts(100, "day")
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*/
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}, {
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key: "formatToParts",
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value: function formatToParts(value, unit) {
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var rule = this.getRule(value, unit);
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var valueIndex = rule.indexOf("{0}"); // "yesterday"/"today"/"tomorrow".
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if (valueIndex < 0) {
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return [{
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type: "literal",
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value: rule
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}];
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}
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var parts = [];
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if (valueIndex > 0) {
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parts.push({
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type: "literal",
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value: rule.slice(0, valueIndex)
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});
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}
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parts.push({
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unit: unit,
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type: "integer",
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value: this.formatNumber(Math.abs(value))
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});
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if (valueIndex + "{0}".length < rule.length - 1) {
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parts.push({
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type: "literal",
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value: rule.slice(valueIndex + "{0}".length)
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});
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}
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return parts;
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}
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/**
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* Returns formatting rule for `value` in `units` (either in past or in future).
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* @param {number} value - Time interval value.
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* @param {string} unit - Time interval measurement unit.
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* @return {string}
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* @throws {RangeError} If unit is not one of "second", "minute", "hour", "day", "week", "month", "quarter".
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* @example
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* // Returns "{0} days ago"
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* getRule(-2, "day")
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*/
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}, {
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key: "getRule",
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value: function getRule(value, unit) {
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if (UNITS.indexOf(unit) < 0) {
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throw new RangeError("Unknown time unit: ".concat(unit, "."));
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} // Get locale-specific time interval formatting rules
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// of a given `style` for the given value of measurement `unit`.
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//
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// E.g.:
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//
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// ```json
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// {
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// "past": {
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// "one": "a second ago",
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// "other": "{0} seconds ago"
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// },
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// "future": {
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// "one": "in a second",
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// "other": "in {0} seconds"
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// }
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// }
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// ```
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//
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var unitRules = (0, _LocaleDataStore.getLocaleData)(this.locale)[this.style][unit]; // Special case for "yesterday"/"today"/"tomorrow".
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if (this.numeric === "auto") {
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// "yesterday", "the day before yesterday", etc.
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if (value === -2 || value === -1) {
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var message = unitRules["previous".concat(value === -1 ? '' : '-' + Math.abs(value))];
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if (message) {
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return message;
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}
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} // "tomorrow", "the day after tomorrow", etc.
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else if (value === 1 || value === 2) {
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var _message = unitRules["next".concat(value === 1 ? '' : '-' + Math.abs(value))];
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if (_message) {
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return _message;
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}
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} // "today"
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else if (value === 0) {
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if (unitRules.current) {
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return unitRules.current;
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}
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}
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} // Choose either "past" or "future" based on time `value` sign.
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// If there's only "other" then it's being collapsed.
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// (the resulting bundle size optimization technique)
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var quantifierRules = unitRules[value <= 0 ? "past" : "future"]; // Bundle size optimization technique.
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if (typeof quantifierRules === "string") {
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return quantifierRules;
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} // Quantify `value`.
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var quantify = (0, _LocaleDataStore.getLocaleData)(this.locale).quantify;
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var quantifier = quantify && quantify(Math.abs(value)); // There seems to be no such locale in CLDR
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// for which `quantify` is missing
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// and still `past` and `future` messages
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// contain something other than "other".
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/* istanbul ignore next */
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quantifier = quantifier || 'other'; // "other" rule is supposed to be always present.
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// If only "other" rule is present then "rules" is not an object and is a string.
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return quantifierRules[quantifier] || quantifierRules.other;
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}
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/**
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* Formats a number into a string.
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* Uses `Intl.NumberFormat` when available.
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* @param {number} number
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* @return {string}
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*/
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}, {
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key: "formatNumber",
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value: function formatNumber(number) {
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return this.numberFormat ? this.numberFormat.format(number) : String(number);
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}
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/**
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* Returns a new object with properties reflecting the locale and date and time formatting options computed during initialization of this DateTimeFormat object.
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* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/resolvedOptions
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* @return {Object}
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*/
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}, {
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key: "resolvedOptions",
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value: function resolvedOptions() {
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return {
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locale: this.locale,
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style: this.style,
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numeric: this.numeric
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};
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}
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}]);
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return RelativeTimeFormat;
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}();
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/**
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* Returns an array containing those of the provided locales
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* that are supported in collation without having to fall back
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* to the runtime's default locale.
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* @param {(string|string[])} locale - A string with a BCP 47 language tag, or an array of such strings. For the general form of the locales argument, see the Intl page.
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* @param {Object} [options] - An object that may have the following property:
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* @param {string} [options.localeMatcher="lookup"] - The locale matching algorithm to use. Possible values are "lookup" and "best fit". Currently only "lookup" is supported.
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* @return {string[]} An array of strings representing a subset of the given locale tags that are supported in collation without having to fall back to the runtime's default locale.
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* @example
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* var locales = ['ban', 'id-u-co-pinyin', 'es-PY']
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* var options = { localeMatcher: 'lookup' }
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* // Returns ["id", "es-PY"]
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* Intl.RelativeTimeFormat.supportedLocalesOf(locales, options)
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*/
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exports.default = RelativeTimeFormat;
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RelativeTimeFormat.supportedLocalesOf = function (locales) {
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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// Convert `locales` to an array.
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if (typeof locales === 'string') {
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locales = [locales];
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}
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return locales.filter(function (locale) {
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return (0, _resolveLocale.default)(locale, options);
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});
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};
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/**
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* Adds locale data for a specific locale.
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* @param {Object} localeData
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*/
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RelativeTimeFormat.addLocale = _LocaleDataStore.addLocaleData;
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/**
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* Sets default locale.
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* @param {string} locale
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*/
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RelativeTimeFormat.setDefaultLocale = _LocaleDataStore.setDefaultLocale;
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/**
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* Gets default locale.
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* @return {string} locale
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*/
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RelativeTimeFormat.getDefaultLocale = _LocaleDataStore.getDefaultLocale;
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/**
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* Extracts language from an IETF BCP 47 language tag.
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* @param {string} languageTag - IETF BCP 47 language tag.
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* @return {string}
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* @example
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* // Returns "he"
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* getLanguageFromLanguageTag("he-IL-u-ca-hebrew-tz-jeruslm")
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* // Returns "ar"
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* getLanguageFromLanguageTag("ar-u-nu-latn")
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*/
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// export function getLanguageFromLanguageTag(languageTag) {
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// const hyphenIndex = languageTag.indexOf('-')
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// if (hyphenIndex > 0) {
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// return languageTag.slice(0, hyphenIndex)
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// }
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// return languageTag
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// }
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//# sourceMappingURL=RelativeTimeFormat.js.map
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