'use strict'; var GetIntrinsic = require('get-intrinsic'); var $TypeError = GetIntrinsic('%TypeError%'); var $Date = GetIntrinsic('%Date%'); var $String = GetIntrinsic('%String%'); var $isNaN = require('../helpers/isNaN'); var Type = require('./Type'); // https://262.ecma-international.org/6.0/#sec-todatestring module.exports = function ToDateString(tv) { if (Type(tv) !== 'Number') { throw new $TypeError('Assertion failed: `tv` must be a Number'); } if ($isNaN(tv)) { return 'Invalid Date'; } return $String(new $Date(tv)); };