michalkowol

var com = com || {};
 
com.MTVClass1 = function (videoID) {
    "use strict";
    var self = {};
 
    function bar() {
        return "bar" + videoID;
    }
 

michalkowol

function _extend(object, source) {
    for (var key in source) {
        if (source.hasOwnProperty(key)) {
            object[key] = source[key];
        }
    }
    return object;
}
 
var mtv = (function (mtv) {

michalkowol

def pattern(value: String, consToMatch: String): String = {
  val a = "1"
  val b = "2"
  value match {
    case `a` => "one"
    case `b` => "two"
    case `consToMatch` => "!!!"
    case _ => "???"
  }
}

michalkowol

trait A {
  def m: String
}
trait B extends A {
  override def m: String = "b"
  def b = "b"
}
trait C extends A {
  override def m: String = "c"
  def c = "c"

michalkowol

var ll = List(List(1, 2, 3), List(2, 3), List(1), List(9), List(11, 1))

for {
  l <- ll
  e <- l if l.contains(1)
} yield e // List(1, 2, 3, 1, 11, 1)

michalkowol

import scala.util.Try

val s = Try("100".toInt)    // Success(100)
val f = Try("michal".toInt) // Failure(java.lang.NumberFormatException ...)

s.map(_ + 200)              // Success(300)
f.map(_ + 200)              // Failure(java.lang.NumberFormatException ...)

michalkowol

val a = Some(2)
val b = Some(3)

for {
  v1 <- a
  v2 <- b //v2 is Int
} yield v1 + v2

for {
  v1 <- a

michalkowol

import scala.concurrent.{Await, Future}
import scala.concurrent.duration._
import scala.concurrent.ExecutionContext.Implicits.global

def ageNextYear(currentAge: Int): Future[Int] = {
  Future { currentAge + 1 }
}

def welcome(name: String, age: Int): Future[String] = {
  Future { s"$name $age" }

michalkowol

val s = Array(1 ,2, 3)         // s: Array[Int] = Array(1, 2, 3)
def testCase(s: Seq[Int]) = s  // testCase: TestCase[](val s: Seq[Int]) => Seq[Int]
testCase(s)                    // res0: Seq[Int] = WrappedArray(1, 2, 3)
s(0) = 7                       // res1: Unit = ()
testCase(s)                    // res2: Seq[Int] = WrappedArray(7, 2, 3)

michalkowol

case class User(name: String, age: Int)
User(name = "Bob", age = 10).copy(age = 40) // User(Bob, 40)