13 lines
420 B
JavaScript
Executable file
13 lines
420 B
JavaScript
Executable file
'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();
|
|
};
|