15 lines
316 B
JavaScript
15 lines
316 B
JavaScript
'use strict';
|
|
|
|
var global = require('es5-ext/global')
|
|
, polyfill = require('../polyfill');
|
|
|
|
module.exports = function (t, a) {
|
|
var cache;
|
|
a(typeof t(), 'boolean');
|
|
cache = global.Symbol;
|
|
global.Symbol = polyfill;
|
|
a(t(), true);
|
|
if (cache === undefined) delete global.Symbol;
|
|
else global.Symbol = cache;
|
|
};
|