Function isAsyncIterable

docs/app/js/sanddance-app.js:55291–55293

(x)

    return x && typeof x[Symbol.iterator] === "function";
};
var isAsyncIterable = function isAsyncIterable(x) {
    return x && typeof x[Symbol.asyncIterator] === "function";
};
var isIterator = function isIterator(x) {
    return x && isFunction(x.next);
};