carlosmaniero

app.post('/customers/:customerId/orders/', (req, res) => {
  if (req.body.items.length === 0) {
    res.status(400).end()
  } else {
    MongoClient.connect(url, function (err, client) {
      if (err) {
        console.error(err)
      }
      const db = client.db(dbName)
      const collection = db.collection('orders')

carlosmaniero

const updateStatus = (order, newStatus) => {
  if (order.status === undefined) {
    order.status = 'ORDERED'
  }
  
  //...
}

carlosmaniero

data Model = Model
    { name :: String
    , gender :: String
    , loading :: Bool
    , homeworld :: String
    } deriving (Show)


data PersonResponse = PersonResponse
    { personName :: String

carlosmaniero

const withFunction = {
  myOwnProp: 42,
  myOwnFunc: function () {
    return this.myOwnProp
  }
}

const withArrow = {
  myOwnProp: 42,
  myOwnFunc: () => {

carlosmaniero

import java.util.HashMap;
import java.util.Map;

class Fair {
    private final int quantity;

    Fair(int quantity) {
        this.quantity = quantity;
    }

carlosmaniero

import java.util.stream.Stream;

public class ReduceSum {
    public static void main(String args[]) {
        int sum = Stream.of(1, 2, 3, 4, 5)
                .reduce(0, (acc, item) -> acc + item);

        System.out.println(sum);
    }
}

carlosmaniero

import java.util.HashMap;
import java.util.Map;

public class StreamMap {
    public static void main(String args[]) {
        Map<String, Integer> fruits = new HashMap<>();
        fruits.put("Banana", 7);
        fruits.put("Apple", 2);
        fruits.put("Kiwi", 1);

carlosmaniero

import java.util.stream.Stream;

public class StreamForEach {
    public static void main(String args[]) {
        System.out.println("Fruit List:");

        Stream.of("Banana", "Apple", "Kiwi")
                .forEach(System.out::println);
    }
}

carlosmaniero

public class LambdaExpression {
    public static void main(String args[]) {
        TouchMe touchMe = new TouchMe(System.out::println);

        touchMe.touch();    // 1
        touchMe.touch();    // 2
        touchMe.touch();    // 3
        touchMe.touch();    // 4
        touchMe.touch();    // 5
    }

carlosmaniero

public class LambdaExpression {
    public static void main(String args[]) {
        TouchMe touchMe = new TouchMe(times -> System.out.println(times));

        touchMe.touch();    // 1
        touchMe.touch();    // 2
        touchMe.touch();    // 3
        touchMe.touch();    // 4
        touchMe.touch();    // 5
    }