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1
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'use strict';
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2
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3
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var GetIntrinsic = require('../GetIntrinsic');
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4
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5
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var $TypeError = GetIntrinsic('%TypeError%');
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6
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var $Date = GetIntrinsic('%Date%');
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7
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8
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var $isNaN = require('../helpers/isNaN');
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9
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10
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var Type = require('./Type');
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11
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12
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// https://ecma-international.org/ecma-262/6.0/#sec-todatestring
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13
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14
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module.exports = function ToDateString(tv) {
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15
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if (Type(tv) !== 'Number') {
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16
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throw new $TypeError('Assertion failed: `tv` must be a Number');
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17
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}
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18
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if ($isNaN(tv)) {
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19
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return 'Invalid Date';
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20
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}
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21
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return $Date(tv);
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22
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};
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