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musix-oss/node_modules/es-abstract/2018/DateString.js
2020-03-03 22:30:50 +02:00

31 lines
1.0 KiB
JavaScript

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