Kudo

static int _HashingSourceInfo(in_addr_t sourceIp, uint32_t sourceId)
{
    // [0] Cantor pairing function
    unsigned long long key = (sourceIp + sourceId) * (sourceIp + sourceId + 1) / 2 + sourceId;

    // Ref: http://elliottback.com/wp/hashmap-implementation-in-c/
    // [1] Robert Jenkins 32 bit Mix Function
    key += (key << 12);
    key ^= (key >> 22);
    key += (key << 4);

Kudo

public class RNSampleModule extends ReactContextBaseJavaModule {
    public static final String TAG = "RNSampleModule";
    private GitHubService mGitHubService;

    public class Release {
        public String tagName;
        public String htmlUrl;
    }

    public interface GitHubService {

Kudo

public class LocationManager extends ReactContextBaseJavaModule {
    public static final String TAG = "LocationManager";
    private static final int LOCATION_TIMEOUT_IN_SECONDS = 10;
    private static final int LOCATION_UPDATE_INTERVAL = 1000;

    public LocationManager(ReactApplicationContext reactContext) {
        super(reactContext);
    }

    @Override

Kudo

function getSomething() {
  let cachePromiseFn = () => {
    return cacheStorage.getItem(CACHE_KEY)
    .then(value => {
      return value && JSON.parse(value);
    });
  };

  let requestPromiseFn = () => {
    return fetch('https://localhost/foo')

Kudo

(function() {
    var overrideFuncs = ["log", "error", "info", "warn", "trace"];
    for (var i = 0, n = overrideFuncs.length; i < n; ++i) {
        (function(fName) {
            var fn = console[fName];
            console[fName] = function() {
                var time = new Date().toISOString();
                var newArgs = Array.prototype.slice.call(arguments);
                newArgs.unshift(time + " [" + fName.toUpperCase() + "] -");
                fn.apply(this, newArgs);

Kudo

let immutableDataList = Immutable.List.of(
  Immutable.Map({id: 123, name: 'foo'}),
  Immutable.Map({id: 456, name: 'bar'}),
);

let dataSource = new ListView.DataSource({
  rowHasChanged: (r1, r2) => !Immutable.is(r1, r2),
  getRowData: (dataBlob, sectionID, rowID) => { return dataBlob[sectionID].get(rowID); }
});

Kudo

auto HelloCxxModule::getMethods() -> std::vector<Method> {
  return {
      Method("foo", [](folly::dynamic args, Callback cb) { cb({"foo"}); }),
  };
}

Kudo

auto HelloCxxModule::getConstants() -> std::map<std::string, folly::dynamic> {
  return {
      {"one", 1}, {"two", 2}, {"animal", "fox"},
  };
}

Kudo

extern "C" HelloCxxModule* createHelloCxxModule() {
  return new HelloCxxModule();
}

Kudo

auto HelloCxxModule::getMethods() -> std::vector<Method> {
  return {
      Method("bar",
             [this]() {
               if (auto reactInstance = getInstance().lock()) {
                 reactInstance->callJSFunction(
                     "RCTDeviceEventEmitter", "emit",
                     folly::dynamic::array(
                         "appStateDidChange",
                         folly::dynamic::object("app_state", "active")));