--- /dev/null
+'use strict';
+
+var iteratorSymbol = require('es6-symbol').iterator
+ , isArrayLike = require('../object/is-array-like');
+
+module.exports = function (x) {
+ if (x == null) return false;
+ if (typeof x[iteratorSymbol] === 'function') return true;
+ return isArrayLike(x);
+};