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| 'use strict';
|
| var toString = Object.prototype.toString
| , toStringTagSymbol = require('es6-symbol').toStringTag
|
| , id = '[object Set]'
| , Global = (typeof Set === 'undefined') ? null : Set;
|
| module.exports = function (x) {
| return (x && ((Global && ((x instanceof Global) || (x === Global.prototype))) ||
| (toString.call(x) === id) || (x[toStringTagSymbol] === 'Set'))) || false;
| };
|
|
