2.js

const players = [
  { jersey: 56, name: "Djounte Murray", position: "Point guard", PPG: 2.6 },
  { jersey: 98, name: "Dennis Rodman", position: "Small Forward", PPG: 10.8 },
  { jersey: 1, name: "Michael Jordan", position: "Small Forward", PPG: 345.6 },
  { jersey: 2, name: "Lebron James", position: "Shooting Guard", PPG: 26.7 },
  { jersey: 33, name: "Patrick Ewing", position: "Center", PPG: 20.2 },
];

const loopName = (value) =>
  console.log(
    `${value.jersey} - ${value.name} -- Position: ${
      value.position
    } - RPP: ${Math.ceil(value.PPG)}`
  );

players.forEach(loopName);

3.js

const products = [
  { name: "Iphone", price: 200 },
  { name: "Motorola", price: 70 },
  { name: "Samsung", price: 150 },
  { name: "Sony", price: 98 },
  { name: "Windows pone", price: 10 },
];

const showProductInfo = (product) => {
  console.log(`Name: ${product.name} Price. - Price: ${product.price}$`);
};

products.forEach(showProductInfo);

5.js

const cars = [
  { name: "Ford", price: 200 },
  { name: "Nissan", price: 400 },
  { name: "Nissan", price: 600 },
];
const conversionCurrencyUnit = (value) =>
  `${value.name} is ${value.price * 200} rupies`;

const newCars = cars.map(conversionCurrencyUnit);

6.js

const channels = [
  { name: "HBO", premium: true },
  { name: "LIFE", premium: false },
  { name: "Max", premium: true },
  { name: "Cooking channel", premium: false },
  { name: "WOBI", premium: false },
];

const getPremium = (value) => value.premium;
const newArr = channels.filter(getPremium);
console.log(newArr);

7.js

// cach 1
let totalDistance = 0;
trips.forEach((trip) => {
  totalDistance += trip.distance;
});
totalDistance

// cach 2
const totalDistance = trips.reduce((acc, cur) => acc + cur.distance, 0);

8.js

const result = computers.reduce(
  (acc, cur) => {
    if (cur.os === "Windows") acc.numWins += 1;
    if (cur.os === "Mac") acc.numMacs += 1;
    return acc;
  },
  {
    numWins: 0,
    numMacs: 0,
  }
);