'use strict';
// https://github.com/tc39/proposal-iterator-helpers
var $ = require('../internals/export');
+var global = require('../internals/global');
var iterate = require('../internals/iterate');
-var aFunction = require('../internals/a-function');
+var aCallable = require('../internals/a-callable');
var anObject = require('../internals/an-object');
+var TypeError = global.TypeError;
+
$({ target: 'Iterator', proto: true, real: true }, {
reduce: function reduce(reducer /* , initialValue */) {
anObject(this);
- aFunction(reducer);
+ aCallable(reducer);
var noInitial = arguments.length < 2;
var accumulator = noInitial ? undefined : arguments[1];
iterate(this, function (value) {