--- /dev/null
+'use strict';
+
+var isArguments = require('es5-ext/function/is-arguments')
+ , isString = require('es5-ext/string/is-string')
+ , iteratorSymbol = require('es6-symbol').iterator
+
+ , isArray = Array.isArray;
+
+module.exports = function (value) {
+ if (value == null) return false;
+ if (isArray(value)) return true;
+ if (isString(value)) return true;
+ if (isArguments(value)) return true;
+ return (typeof value[iteratorSymbol] === 'function');
+};