What are some examples of using map objects in JavaScript?

Can you give me some examples of using map objects in JavaScript?

Sure! A Map object in JavaScript holds key-value pairs where keys can be of any type. For example, you can create a map like this:

let myMap = new Map();
myMap.set('name', 'Alice');
myMap.set('age', 30);

This creates a map with a string key 'name' and a number key 'age'.

How do I retrieve a value from a map?

You can retrieve a value using the get method. For example:

let name = myMap.get('name'); // returns 'Alice'

Can I use objects as keys in a map?

Yes, you can use objects as keys in a Map. For example:

let objKey = {};
myMap.set(objKey, 'This is an object key');