21 lines
533 B
JavaScript
21 lines
533 B
JavaScript
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'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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var $TypeError = GetIntrinsic('%TypeError%');
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var callBound = require('../helpers/callBound');
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var $SymbolToString = callBound('Symbol.prototype.toString', true);
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var Type = require('./Type');
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// https://www.ecma-international.org/ecma-262/6.0/#sec-symboldescriptivestring
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module.exports = function SymbolDescriptiveString(sym) {
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if (Type(sym) !== 'Symbol') {
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throw new $TypeError('Assertion failed: `sym` must be a Symbol');
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}
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return $SymbolToString(sym);
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};
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