Function isReadableStream

docs/app/js/sanddance-app.js:55321–55323

(x)

    return isObject(x) && isFunction(x.read) && isFunction(x.pipe) && isBoolean(x.readable);
};
var isReadableStream = function isReadableStream(x) {
    return isReadableDOMStream(x) || isReadableNodeStream(x);
};
var isWritableStream = function isWritableStream(x) {
    return isWritableDOMStream(x) || isWritableNodeStream(x);
};