103 lines
3.1 KiB
JavaScript
103 lines
3.1 KiB
JavaScript
"use strict";
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exports.lightFormatters = void 0;
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var _index = require("../addLeadingZeros.js");
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/*
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* | | Unit | | Unit |
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* |-----|--------------------------------|-----|--------------------------------|
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* | a | AM, PM | A* | |
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* | d | Day of month | D | |
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* | h | Hour [1-12] | H | Hour [0-23] |
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* | m | Minute | M | Month |
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* | s | Second | S | Fraction of second |
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* | y | Year (abs) | Y | |
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*
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* Letters marked by * are not implemented but reserved by Unicode standard.
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*/
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const lightFormatters = (exports.lightFormatters = {
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// Year
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y(date, token) {
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// From http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_tokens
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// | Year | y | yy | yyy | yyyy | yyyyy |
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// |----------|-------|----|-------|-------|-------|
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// | AD 1 | 1 | 01 | 001 | 0001 | 00001 |
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// | AD 12 | 12 | 12 | 012 | 0012 | 00012 |
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// | AD 123 | 123 | 23 | 123 | 0123 | 00123 |
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// | AD 1234 | 1234 | 34 | 1234 | 1234 | 01234 |
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// | AD 12345 | 12345 | 45 | 12345 | 12345 | 12345 |
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const signedYear = date.getFullYear();
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// Returns 1 for 1 BC (which is year 0 in JavaScript)
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const year = signedYear > 0 ? signedYear : 1 - signedYear;
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return (0, _index.addLeadingZeros)(
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token === "yy" ? year % 100 : year,
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token.length,
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);
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},
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// Month
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M(date, token) {
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const month = date.getMonth();
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return token === "M"
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? String(month + 1)
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: (0, _index.addLeadingZeros)(month + 1, 2);
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},
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// Day of the month
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d(date, token) {
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return (0, _index.addLeadingZeros)(date.getDate(), token.length);
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},
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// AM or PM
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a(date, token) {
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const dayPeriodEnumValue = date.getHours() / 12 >= 1 ? "pm" : "am";
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switch (token) {
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case "a":
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case "aa":
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return dayPeriodEnumValue.toUpperCase();
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case "aaa":
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return dayPeriodEnumValue;
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case "aaaaa":
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return dayPeriodEnumValue[0];
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case "aaaa":
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default:
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return dayPeriodEnumValue === "am" ? "a.m." : "p.m.";
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}
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},
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// Hour [1-12]
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h(date, token) {
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return (0, _index.addLeadingZeros)(
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date.getHours() % 12 || 12,
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token.length,
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);
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},
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// Hour [0-23]
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H(date, token) {
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return (0, _index.addLeadingZeros)(date.getHours(), token.length);
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},
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// Minute
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m(date, token) {
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return (0, _index.addLeadingZeros)(date.getMinutes(), token.length);
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},
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// Second
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s(date, token) {
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return (0, _index.addLeadingZeros)(date.getSeconds(), token.length);
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},
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// Fraction of second
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S(date, token) {
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const numberOfDigits = token.length;
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const milliseconds = date.getMilliseconds();
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const fractionalSeconds = Math.trunc(
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milliseconds * Math.pow(10, numberOfDigits - 3),
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);
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return (0, _index.addLeadingZeros)(fractionalSeconds, token.length);
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},
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});
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