install-nix-action/node_modules/has-symbols/index.js
Domen Kožar 70742d22d9
v6
2019-11-19 17:50:30 +01:00

13 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();
};