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fullstack-open/part3/phonebook/node_modules/has-symbols/index.js
Andrew Trieu fa5d8255d6 Add part3
2023-05-23 08:05:53 +03:00

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JavaScript

'use strict';
var origSymbol = typeof Symbol !== 'undefined' && Symbol;
var hasSymbolSham = require('./shams');
module.exports = function hasNativeSymbols() {
if (typeof origSymbol !== 'function') { return false; }
if (typeof Symbol !== 'function') { return false; }
if (typeof origSymbol('foo') !== 'symbol') { return false; }
if (typeof Symbol('bar') !== 'symbol') { return false; }
return hasSymbolSham();
};