milingo

it('should save and find a tweet', async () => {
  tweet.setFollowers(42);
  tweet.setFriends(88);
  const newTweet = await saveAndFind(tweet);
  expect(newTweet.getFollowers()).to.eql(tweet.getFollowers());
  expect(newTweet.getFriends()).to.eql(tweet.getFriends());
});

milingo

it('should save and find the followers', async () => {
  tweet.setFollowers(42);
  const newTweet = await saveAndFind(tweet);
  expect(newTweet.getFollowers()).to.eql(tweet.getFollowers());
});
it('should save and find the friends', async () => {
  tweet.setFriends(88);
  const newTweet = await saveAndFind(tweet);
  expect(newTweet.getFriends()).to.eql(tweet.getFriends());
});

milingo

<script>
  var source = new EventSource('/live');
  source.onmessage = function(event) {
    console.log('Incoming date:' + event.data);
  };
</script>

milingo

const http = require('http');

const server = http.createServer(function (req, res) {
  if (req.url === '/live') {
    res.writeHead(200, {
      'Content-Type': 'text/event-stream',
      'Cache-Control': 'no-cache',
      'Connection': 'keep-alive'
    });
    res.write('retry: 5000\n');

milingo

<script src="/socket.io/socket.io.js"></script>
<script>
  const socket = io('http://localhost:3000');
  socket.on('tic', (data) => {
    console.log(data);

    data.seconds++;
    socket.emit('tac', data);
  });
</script>

milingo

const http = require('http');
const SocketIO = require('socket.io')

const server = http.createServer(function (req, res) {
...  
});

const io = SocketIO(server);
io.on('connection', (socket) => {
  socket.emit('tic', { seconds: 0 });

milingo

milingo

# Turn a List<> into String[]
String[] strings = list.stream().toArray(String[]::new);

# Reduce by collecting over a field
list.stream().collect(Collectors.mapping(
                      Person::getName,
                      Collectors.toList())),

# Run several tasks asynchronously and wait for them
CompletableFuture<Map<String, List<String>>> campaignsByGeohashWithLocationsFuture =

milingo

### Clone collection from remote host

mongo
use <database>
db.cloneCollection("remote.host:27017", "<collection>")

milingo

var groups =_.groupBy(categories, _.curry(_.has)(_, 'id'));