tcp-serial-relay
Version:
Modular TCP to Serial relay service with comprehensive logging, monitoring and web dashboard
15 lines (11 loc) • 447 B
JavaScript
;
var origSymbol = typeof Symbol !== 'undefined' && Symbol;
var hasSymbolSham = require('./shams');
/** @type {import('.')} */
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();
};