aaac7fed
 liuqimichale
add
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'use strict';
var origSymbol = global.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();
};
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