forked from zhurui/management
14 lines
394 B
JavaScript
14 lines
394 B
JavaScript
|
'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();
|
||
|
|
};
|