iteration3.js

var prices = [400, 80, 375, 870];

var products = { 
  "widget": 400,
  "gear": 80,
  "crank": 375,
  "lever": 870,
};

var pricesDescriptors = Object.getOwnPropertyDescriptors(prices);
console.log(pricesDescriptors);
  // logs:
  // { 0: {value: 400, writable: true, enumerable: true, configurable: true},
  //   1: {value: 80, writable: true, enumerable: true, configurable: true},
  //   2: {value: 375, writable: true, enumerable: true, configurable: true},
  //   3: {value: 870, writable: true, enumerable: true, configurable: true},
  //   length: {value: 4, writable: true, enumerable: false, configurable: false} }

var productsDescriptors = Object.getOwnPropertyDescriptors(products);
console.log(productsDescriptors);
  // logs:
  // { crank: {value: 375, writable: true, enumerable: true, configurable: true},
  //   gear: {value: 80, writable: true, enumerable: true, configurable: true},
  //   lever: {value: 870, writable: true, enumerable: true, configurable: true},
  //   crank: {value: 375, writable: true, enumerable: true, configurable: true} }