Eddcp

class Animal {
  constructor(name) {
    this.name = name
  }
 
  eat() {
    console.log(`${this.name} is eating`);
  }
}

Eddcp

var Animal = function (name) {
  this.name = name;
}

Animal.prototype.eat = function () {
  console.log(this.name + ' is eating!');
}

var Dog = function (name) {
  Animal.call(this, name);

Eddcp

(function () {
  var gandalfQuote = 'You shall not pass!';
})();

console.log(gandalfQuote);

Eddcp

console.log(person);
var person = 'Jon Snow';

Eddcp

var goodGuys = ['Frodo', 'Sam', 'Gandalf'];

for (var i = 0; i < goodGuys.length; i++) {
  console.log(goodGuys[i]);
}

console.log(i);

Eddcp

person = 'Jon Snow';

var person;

console.log(person);