'use strict';
|
// https://github.com/tc39/proposal-iterator-helpers
|
var call = require('../internals/function-call');
|
var anObject = require('../internals/an-object');
|
var getIteratorDirect = require('../internals/get-iterator-direct');
|
var createIteratorProxy = require('../internals/iterator-create-proxy');
|
|
var IteratorProxy = createIteratorProxy(function () {
|
var result = anObject(call(this.next, this.iterator));
|
var done = this.done = !!result.done;
|
if (!done) return [this.index++, result.value];
|
});
|
|
module.exports = function indexed() {
|
return new IteratorProxy(getIteratorDirect(this), {
|
index: 0
|
});
|
};
|