--- /dev/null
+'use strict';
+
+module.exports = function () {
+ var arr = [1, 'foo'], iterator, result;
+ if (typeof arr.entries !== 'function') return false;
+ iterator = arr.entries();
+ if (!iterator) return false;
+ if (typeof iterator.next !== 'function') return false;
+ result = iterator.next();
+ if (!result || !result.value) return false;
+ if (result.value[0] !== 0) return false;
+ if (result.value[1] !== 1) return false;
+ if (result.done !== false) return false;
+ return true;
+};