sevperez

using System;

public class Program
{
    public static void Main()
    {
        int myInt = 8;
        double myDecimal = 8.5;
        string myString = "electron";

sevperez

my_int = 8
my_decimal = 8.5
my_string = "electron"

puts "My int is: #{my_int}"
puts "My float is: #{my_decimal}"
puts "My string is: #{my_string}"

sevperez

function DinoError(message) {
  this.name = "DinoError";
  this.message = message;
}
DinoError.prototype = new Error();

function cloneDinosaur(name, type) {
  var validTypes = ["Apatosaurus", "Dilophosaurus", "Tyrannosaurus Rex", "Stegosaurus"];
  
  try {

sevperez

function cloneDinosaur(name) {
  try {
    var myDinosaur = {
      name: name,
      dangerMessage: name.toUpperCase() + " IS COMING!!!",
    };
    
    return myDinosaur;
  } catch (e) {
    console.log(e.name + ": " + e.message);

sevperez

var dinoError = new Error("Oh no! A dino error!");
dinoError.name = "DinoError";

console.log("dinoError name: ", dinoError.name);
  // Logs:  dinoError name:  DinoError

console.log("dinoError message: ", dinoError.message);
  // Logs:  dinoError message:  Oh no! A dino error!

sevperez

console.log("My favorite dinasaur is " + theropod);
  // ReferenceError: theropod is not defined

var sauropod = "apatosaurus";
sauropod();
  // TypeError: sauropod is not a function

if (sauropod === "apatosaurus")
  console.log("We have the same favorite sauropod!");
}

sevperez

// Implicit
console.log("20" + 18);                   // Logs: 2018
console.log("20" * 18);                   // Logs: 360
console.log(20 + true);                   // Logs: 21
console.log("20" == 20);                  // Logs: true
console.log("20" === 20);                 // Logs: false

// Explicit
console.log(Number("20") + 18);           // Logs: 38
console.log(String(20) + String(true));   // Logs: "20true"

sevperez

var favoritePlanets = ["Mars", "Saturn", "Earth"];
console.log(favoritePlanets);     // Logs: [ 'Mars', 'Saturn', 'Earth' ]

favoritePlanets.sort();
console.log(favoritePlanets);     // Logs: [ 'Earth', 'Mars', 'Saturn' ]

favoritePlanets.push("Jupiter");  // Logs: 
console.log(favoritePlanets);     // Logs: [ 'Earth', 'Mars', 'Saturn', 'Jupiter' ]

favoritePlanets[0].concat("2");

sevperez

var someGreeting = "hello";
var otherGreeting = someGreeting;

console.log(someGreeting);              // Logs: hello
console.log(otherGreeting);             // Logs: hello

someGreeting.concat("!!!");
  // return value: "hello!!!"

console.log(someGreeting);              // Logs: hello

sevperez

// Null testing
var myNullValue = null;
console.log(typeof myNullValue);          // Logs: object
console.log(myNullValue === null);        // Logs true

// Array testing
var myArray = [];
console.log(typeof myArray);              // Logs: object
console.log(Array.isArray(myArray));      // Logs: true
console.log(Array.isArray({}));           // Logs: false