Commit

1 files changed, 30 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2019/DateString.js b/src/node_modules/es-abstract/2019/DateString.js
new file mode 100644
index 0000000..fc30329
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+++ b/src/node_modules/es-abstract/2019/DateString.js
@@ -0,0 +1,30 @@
+'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;
+};