智能照明系统APP-本地串口
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LightingSystemApp-serial/.svn/pristine/52/52d981e2fc01bbe1d9f3fddfa4b...

14 lines
394 B

3 years ago
'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();
};