85 lines
2.6 KiB
JavaScript
85 lines
2.6 KiB
JavaScript
"use strict";
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exports.formatRFC3339 = formatRFC3339;
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var _index = require("./_lib/addLeadingZeros.cjs");
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var _index2 = require("./isValid.cjs");
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var _index3 = require("./toDate.cjs");
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/**
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* The {@link formatRFC3339} function options.
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*/
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/**
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* @name formatRFC3339
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* @category Common Helpers
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* @summary Format the date according to the RFC 3339 standard (https://tools.ietf.org/html/rfc3339#section-5.6).
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*
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* @description
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* Return the formatted date string in RFC 3339 format. Options may be passed to control the parts and notations of the date.
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*
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* @param date - The original date
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* @param options - An object with options.
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*
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* @returns The formatted date string
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*
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* @throws `date` must not be Invalid Date
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*
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* @example
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* // Represent 18 September 2019 in RFC 3339 format:
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* formatRFC3339(new Date(2019, 8, 18, 19, 0, 52))
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* //=> '2019-09-18T19:00:52Z'
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*
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* @example
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* // Represent 18 September 2019 in RFC 3339 format, 3 digits of second fraction
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* formatRFC3339(new Date(2019, 8, 18, 19, 0, 52, 234), {
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* fractionDigits: 3
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* })
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* //=> '2019-09-18T19:00:52.234Z'
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*/
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function formatRFC3339(date, options) {
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const date_ = (0, _index3.toDate)(date, options?.in);
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if (!(0, _index2.isValid)(date_)) {
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throw new RangeError("Invalid time value");
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}
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const fractionDigits = options?.fractionDigits ?? 0;
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const day = (0, _index.addLeadingZeros)(date_.getDate(), 2);
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const month = (0, _index.addLeadingZeros)(date_.getMonth() + 1, 2);
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const year = date_.getFullYear();
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const hour = (0, _index.addLeadingZeros)(date_.getHours(), 2);
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const minute = (0, _index.addLeadingZeros)(date_.getMinutes(), 2);
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const second = (0, _index.addLeadingZeros)(date_.getSeconds(), 2);
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let fractionalSecond = "";
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if (fractionDigits > 0) {
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const milliseconds = date_.getMilliseconds();
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const fractionalSeconds = Math.trunc(
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milliseconds * Math.pow(10, fractionDigits - 3),
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);
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fractionalSecond =
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"." + (0, _index.addLeadingZeros)(fractionalSeconds, fractionDigits);
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}
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let offset = "";
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const tzOffset = date_.getTimezoneOffset();
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if (tzOffset !== 0) {
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const absoluteOffset = Math.abs(tzOffset);
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const hourOffset = (0, _index.addLeadingZeros)(
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Math.trunc(absoluteOffset / 60),
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2,
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);
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const minuteOffset = (0, _index.addLeadingZeros)(absoluteOffset % 60, 2);
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// If less than 0, the sign is +, because it is ahead of time.
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const sign = tzOffset < 0 ? "+" : "-";
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offset = `${sign}${hourOffset}:${minuteOffset}`;
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} else {
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offset = "Z";
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}
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return `${year}-${month}-${day}T${hour}:${minute}:${second}${fractionalSecond}${offset}`;
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}
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