@reactivex/rxjs/dist/amd/symbol/iterator.js

Reactive Extensions for modern JavaScript

define(["require", "exports", '../util/root'], function (require, exports, root_1) {
    "use strict";
    var Symbol = root_1.root.Symbol;
    if (typeof Symbol === 'function') {
        if (Symbol.iterator) {
            exports.$$iterator = Symbol.iterator;
        }
        else if (typeof Symbol.for === 'function') {
            exports.$$iterator = Symbol.for('iterator');
        }
    }
    else {
        if (root_1.root.Set && typeof new root_1.root.Set()['@@iterator'] === 'function') {
            // Bug for mozilla version
            exports.$$iterator = '@@iterator';
        }
        else if (root_1.root.Map) {
            // es6-shim specific logic
            var keys = Object.getOwnPropertyNames(root_1.root.Map.prototype);
            for (var i = 0; i < keys.length; ++i) {
                var key = keys[i];
                if (key !== 'entries' && key !== 'size' && root_1.root.Map.prototype[key] === root_1.root.Map.prototype['entries']) {
                    exports.$$iterator = key;
                    break;
                }
            }
        }
        else {
            exports.$$iterator = '@@iterator';
        }
    }
});
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