31 lines
1.0 KiB
JavaScript
31 lines
1.0 KiB
JavaScript
'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var weekdays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
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var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
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var $isNaN = require('../helpers/isNaN');
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var padTimeComponent = require('../helpers/padTimeComponent');
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var Type = require('./Type');
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var WeekDay = require('./WeekDay');
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var MonthFromTime = require('./MonthFromTime');
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var YearFromTime = require('./YearFromTime');
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var DateFromTime = require('./DateFromTime');
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// https://www.ecma-international.org/ecma-262/9.0/#sec-datestring
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module.exports = function DateString(tv) {
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if (Type(tv) !== 'Number' || $isNaN(tv)) {
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throw new $TypeError('Assertion failed: `tv` must be a non-NaN Number');
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}
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var weekday = weekdays[WeekDay(tv)];
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var month = months[MonthFromTime(tv)];
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var day = padTimeComponent(DateFromTime(tv));
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var year = padTimeComponent(YearFromTime(tv), 4);
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return weekday + '\x20' + month + '\x20' + day + '\x20' + year;
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};
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