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node_modules/core-js/internals/iterator-indexed.js

@@ -0,0 +1,14 @@
+'use strict';
+require('../modules/es.iterator.map');
+var call = require('../internals/function-call');
+var map = require('../internals/iterators-core').IteratorPrototype.map;
+
+var callback = function (value, counter) {
+  return [counter, value];
+};
+
+// `Iterator.prototype.indexed` method
+// https://github.com/tc39/proposal-iterator-helpers
+module.exports = function indexed() {
+  return call(map, this, callback);
+};