Maps

Maps

// Maps Fundamental
const rest = new Map(); // create a MAP
rest.set('name', 'Classico Italiano'); // Add a element
rest.set(1, 'Firenze, Italy');
rest.set(2, 'Lisbon, Portugal');

rest.set('categories', ['Italian', 'Pizzeria', 'Vegetarian', 'Organic']) // Adding Mmultiple Element
    .set('open', 11)
    .set('close', 23)
    .set(true, 'We are opeb :D')
    .set(false, 'We are closed :(');
console.log(rest);
console.log(rest.get('name')); // Accesing the Element // Classico Italiano
console.log(rest.get(true)); // We are opeb :D
console.log(rest.get(1)); // Firenze, Italy

const time = 21;
console.log(rest.get(time > rest.get('open') && time < rest.get('close'))); // We are opeb :D

console.log(rest.has('categories')); // true
rest.delete(2); // delete an element
const arr = [1, 2, 3];
rest.set(arr, 'Test'); // Arr should be a variable
console.log(rest.get(arr));
console.log(rest); // test
// rest.clear() // clear the map
console.log(rest.size); // Size of the MAP

// Itreation through Map
const question = new Map([
    ['question', 'What is the best programming languange in the world?'],
    [1, 'C'],
    [2, 'Java'],
    [3, 'JavaScript'],
    ['correct', 3],
    [true, 'Correct 🎉'],
    [false, 'Try again! 🤦'],
]);
console.log(question);

// Convert Object to Map
console.log(Object.entries(openingHours));
const hoursMap = new Map(Object.entries(openingHours));
console.log(hoursMap);

// Quiz App
console.log(question.get('question'));
// Itreation
for (const [key, value] of question) {
    if (typeof key === 'number') console.log(`Answer ${key}: ${value}`);
}
// const answer = Number(prompt("Enter Your Answer. 1 , 2 or 3"))
const answer = 3;
console.log(question.get(answer === question.get('correct')));

// Convert map to Arr
console.log([...question]);
console.log([...question.entries()]);
console.log([...question.keys()]);
console.log([...question.values()]);