| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |
| 3 | var GetIntrinsic = require('get-intrinsic'); |
| 4 | |
| 5 | var $TypeError = GetIntrinsic('%TypeError%'); |
| 6 | |
| 7 | var weekdays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; |
| 8 | var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; |
| 9 | |
| 10 | var $isNaN = require('../helpers/isNaN'); |
| 11 | var padTimeComponent = require('../helpers/padTimeComponent'); |
| 12 | |
| 13 | var Type = require('./Type'); |
| 14 | var WeekDay = require('./WeekDay'); |
| 15 | var MonthFromTime = require('./MonthFromTime'); |
| 16 | var YearFromTime = require('./YearFromTime'); |
| 17 | var DateFromTime = require('./DateFromTime'); |
| 18 | |
| 19 | // https://262.ecma-international.org/9.0/#sec-datestring |
| 20 | |
| 21 | module.exports = function DateString(tv) { |
| 22 | if (Type(tv) !== 'Number' || $isNaN(tv)) { |
| 23 | throw new $TypeError('Assertion failed: `tv` must be a non-NaN Number'); |
| 24 | } |
| 25 | var weekday = weekdays[WeekDay(tv)]; |
| 26 | var month = months[MonthFromTime(tv)]; |
| 27 | var day = padTimeComponent(DateFromTime(tv)); |
| 28 | var year = padTimeComponent(YearFromTime(tv), 4); |
| 29 | return weekday + '\x20' + month + '\x20' + day + '\x20' + year; |
| 30 | }; |