chain-1.js

'use strict';

function chain() {
  var newReleases = [{
    "id": 70111470,
    "title": "Die Hard",
    "rating": 4.0
  }, {
    "id": 654356453,
    "title": "Bad Boys",
    "rating": 5.0
  }, {
    "id": 65432445,
    "title": "The Chamber",
    "rating": 4.0
  }, {
    "id": 675465,
    "title": "Fracture",
    "rating": 5.0
  }];

  var result = [];

  return newReleases.
    filter(video => video.rating === 5.0).
    map(video => video.id);
}

console.log(chain());
/*
[654356453, 675465]
*/