ES 2015

Map example

const bands = [
  {name: "Beastie Boys", category: "Rap", start: 1979, end: 2012},
  {name: "Nirvana", category: "Grunge", start: 1987, end: 1994},
  {name: "Run DMC", category: "Rap", start: 1981, end: 2002},
  {name: "Sound Garden", category: "Grunge", start: 1984, end: 1997},
  {name: "Queen", category: "Rock", start: 1970, end: 1991},
  {name: "The Beatles", category: "Pop", start: 1960, end: 1970}
];

/* create an Array with just the band names */
const bandNames = bands.map(band => band.name);