Maps: Fundamentals
13.1
Create a new book, but this time, as a Map. Assign it to the bookMap variable. Use this array as initial data:
[['title', 'Clean Code'], ['author', 'Robert C. Martin']]
const bookMap = new Map([['title', 'Clean Code'], ['author', 'Robert C. Martin']]);
13.2
Set a new key in bookMap called pages, and assign it with a number 464.
bookMap.set('pages', 464);
13.3
Get the title and author values from bookMap, and log to the console a string formatted like that: "${title} by ${author}".
console.log(`"${bookMap.get('title')}" by ${bookMap.get('author')}`);
13.4
Get the size of bookMap, and log it to the console.
console.log(bookMap.size);
13.5
Check if bookMap has the author key. and if so, log "The author of the book is known" to the console.
if (bookMap.has('author')) console.log('The author is known');