javascript map 3rd example

map3.js

var mapped = songs.map(function (song) {
  // using _.omit we remove the artist property
  // don't use delete because it mutates the song object
  // while _.omit creates a new one
  var newSong = _.omit(song, "artist");
  
  return Object.assign(newSong, {
    scrobbleCount: 0,
    spotifyUrl: "let's just imagine these properties make sense for now",
  });
});

// ES6
const mapped = songs.map(song => {
  // let's remove the artist property
  const { artist, ...rest } = song;
  
  return {
     ...rest,
    scrobbleCount: 0,
    spotifyUrl: "let's just imagine these properties make sense for now",
  };
});

console.log(mapped);

// const songs = [
//   {
//     id: 1,
//     name: "Curl of the Burl",
//     scrobbleCount: 0,
//     spotifyUrl: "let's just imagine these properties make sense for now"
//   },
//   {
//     id: 2,
//     name: "Oblivion",
//     scrobbleCount: 0,
//     spotifyUrl: "let's just imagine these properties make sense for now"
//   },
//   {
//     id: 3,
//     name: "Flying Whales",
//     scrobbleCount: 0,
//     spotifyUrl: "let's just imagine these properties make sense for now"
//   },
//   {
//     id: 4,
//     name: "L'Enfant Sauvage",
//     scrobbleCount: 0,
//     spotifyUrl: "let's just imagine these properties make sense for now"
//   },
// ];