buymed-hoangpham

const cars = [
	{ name: 'Ford', price: 200 },
	{ name: 'Nissan', price: 400 },
	{ name: 'Nissan', price: 600 },
];

const showString = (car) => `${car.name} is ${car.price * 200} rupies`;

const messages = cars.map((car) => showString(car));
console.log('🚀 ~ file: index.js ~ line 11 ~ messages ~ messages', messages);

buymed-hoangpham

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

const premiumChannels = channels.filter((channel) => channel.premium);

buymed-hoangpham

const trips = [
	{ to: 'Brazil', distance: 1000 },
	{ to: 'Chine', distance: 2500 },
	{ to: 'India', distance: 3000 },
];

const totalDistanceTraveled = trips.reduce(
	(sum, cur) => (sum += cur.distance),
	0
);

buymed-hoangpham

const computers = [
	{ type: 'Laptop', price: 124, os: 'Windows' },
	{ type: 'Desk', price: 124, os: 'Mac' },
	{ type: 'Desk', price: 124, os: 'Windows' },
	{ type: 'Laptop', price: 124, os: 'Mac' },
	{ type: 'Laptop', price: 124, os: 'Windows' },
];

let totalTotalMacComputers = 0;
let totalTotalWindowsComputers = 0;

buymed-hoangpham

// 9. 
const removeEven = (arr) => {
	return arr.filter((el) => el % 2 !== 0);
};

console.log(removeEven([1, 2, 4, 5, 10, 6, 3]));

// 10.
const capitalize = (words) => {
	return words.map((el) => el.charAt(0).toUpperCase() + el.slice(1));

buymed-hoangpham

//1.
const subLength = (str, char) => {
	let charInStr = [],
		lowerStr = str.toLowerCase().split(''),
		length = 0;

	lowerStr.forEach((val, index) => {
		if (val === char) {
			charInStr.push(index);
		}

buymed-hoangpham

const name = "Francis", lastname = "Jones", age = 23;
let obj;

function createObject(name,lastname,age){
   return obj = {
       name,
       lastname,
       age,
   }
}

buymed-hoangpham

// 5
const getLocation = (city, country = 'Italy', continent = 'Europe') =>
	console.log(continent, country, city);

getLocation('Milan');
// Europe Italy Milan

getLocation('Paris', 'France');
// Europe France Paris

buymed-hoangpham

const countCharacters = (str) => {
	const result = {};

	const arr = str.split('');

	for (word of arr) {
		if (result[word]) {
			result[word]++;
		} else {
			result[word] = 1;

buymed-hoangpham

function twoFer(name: string = "you"): string {
    return `One for ${name}, one for me`
}

console.log(twoFer())
console.log(twoFer("Elton"))

function isLeapYear(year: number): boolean {
    return (year % 4 === 0 && year % 100 !== 0) || (year % 400 === 0) 
}