Function isIterator

docs/app/js/sanddance-app.js:55294–55296

(x)

    return x && typeof x[Symbol.asyncIterator] === "function";
};
var isIterator = function isIterator(x) {
    return x && isFunction(x.next);
};
var isResponse = function isResponse(x) {
    return typeof Response !== "undefined" && x instanceof Response || x && x.arrayBuffer && x.text && x.json;
};