examples.js

var movies = [
{
  title: 'titanic', year: 2000
},
{
  title: 'robocop', year: 1990
}];

var result = movies.map(function (movie) {
  return movie.title  + ' came out ' + (2016 - movie.year) + ' years ago';
});


var products = [
  {name: 'coke', price: 1, tax: 0.9},
  {name: 'pepsi', price: 1.3, tax: 0.99},
  {name: 'pizza', price: 23, tax: 3}
]

var result = products.map(function (product) {
  return '' + product.name + ' is : ' + (product.price + product.tax);
});


var people = [
  {first_name: 'david', last_name: 'silva'},
  {first_name: 'jenn', last_name: 'Lê'}
];

var result = people.map(function (person) {
  return 'full name is: ' + person.first_name + ' ' + person.last_name;
});









var products = [
  {name: 'coke', price: 1, tax: 0.9},
  {name: 'pepsi', price: 1.3, tax: 0.99},
  {name: 'pizza', price: 23, tax: 3},
  {name: 'burrito', price: 5, tax: 2}
];


var result = products.filter(function (product) {
    if (product.price > 3) {
      return true;
    }
    return false;
}).map(function (product) {
  return '' + product.name + ' is : ' + (product.price + product.tax);
});




var products = [
    {
      name: 'drinks',
      items: [
        {name: 'coke', price: 1, tax: 0.9},
        {name: 'pepsi', price: 1.3, tax: 0.99}]
    }, {
      name: 'foods',
      items:[
        {name: 'pizza', price: 23, tax: 3},
        {name: 'burrito', price: 5, tax: 2}]
}];


var result = products.map(function(category) {
    return {
        name: category.name,
        items: category.items.map(function (product) {
            return '' + product.name + ' is: ' + (product.price + product.tax);
          })
    };
});