Realm-js: Realm is not created on the first launch

[max-zu]

App crashes on the first launch after update from 2.2.10 to 2.28.0.
On the second launch app works fine.

react-native: 0.55.4
macOS: 10.14.5

POST http://192.168.42.36:8083/create_realm net::ERR_EMPTY_RESPONSE.

[max-zu]

It seems that condition on this line is incorrect.

[ValeriiKov]

some additional notes related this issue:
https://github.com/realm/realm-js/issues/578#issuecomment-499123822

[esutton]

I am seeing iOS crashes on createDirectoryAtPath.
"react": "^16.8.6", "react-native": "0.59.9", "realm": "^2.28.1",
Adding the missing not sign "!" fixes.
NSError *error = nil; if (![manager createDirectoryAtPath:docsDir withIntermediateDirectories:YES attributes:nil error:&error]) { throw std::runtime_error(util::format("Failed to create directory \"%1\": %2", docsDir.UTF8String, error_description(error).UTF8String)); }