parambirs

// 1. The signum of a number is 1 if the number is positive, -1 if it is negative, and
// 0 if it is zero. Write a function that computes this value.
  
def signum(n: Int) = {
  if (n > 0) 1
  else if (n < 0) -1
  else 0
}                                               //> signum: (n: Int)Int
  
signum(4)                                       //> res0: Int = 1

parambirs

const app = new Vue({
  el: '#app',
  data: {
    product: 'Boots',
    myproducts: [
      'Boots',
      'Jacket',
      'Hiking Socks'
    ],
    products: []

parambirs

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Random;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Sources {
    public static void main(String[] args) throws IOException {

parambirs

public class Main {
    enum Event {
        PLAY, STOP, PAUSE
    }

    public static void main(String[] args) {
        var event = Event.PLAY;

        switch (event) {
            case PLAY:

parambirs

docker pull postgres:latest

docker run -d --name guitar-db -p 5432:5432 -e 'POSTGRES_PASSWORD=p@ssw0rd42' postgres

parambirs

package src.exercises

import scala.math._
import BigInt.probablePrime
import util.Random

object chap01 {
// 1. In the Scala REPL, type 3. followed by the Tab key. What methods can be
// applied?
// => Do it in REPL. There are many methods including %, &, *, +, toByte, toChar etc.

parambirs

// 1. Write a code snippet that sets a to an array of n random integers between 0
// (inclusive) and n (exclusive).
val a = new Array[Int](10)                //> a  : Array[Int] = Array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
for(i <- 0 until a.length) a(i) = scala.util.Random.nextInt(10)
a                                         //> res0: Array[Int] = Array(9, 0, 5, 8, 6, 6, 3, 9, 0, 3)

// 2. Write a loop that swaps adjacent elements of an array of integers. For example,
// Array(1, 2, 3, 4, 5) becomes Array(2, 1, 4, 3, 5).
val a = Array[Int](1,2,3,4,5)
a                                         //> res1: Array[Int] = Array(1, 2, 3, 4, 5)

parambirs

sbt tasks

> run

> fastOptJS

Generates a single JS file.

> fullOptJS

parambirs

npm init -y

npm install --save typescript

tsc --init

parambirs

'use strict';

let lime = new function() {
    this.type = 'Mexican lime';
    this.color = 'green';
    this.getInformation = function() {
        return 'This ' + this.type + ' is ' + this.color + '.';
    };
}