How do I iterate over a Map and an Object in JavaScript?

How do I iterate over a Map and an Object in JavaScript?

You can use the forEach method for Maps and a for...in loop for Objects. Would you like examples?

Yes, please provide examples for both.

For a Map, you can do:

const myMap = new Map();
myMap.set('key1', 'value1');
myMap.forEach((value, key) => {
  console.log(key, value);
});

For an Object:

const myObject = { key1: 'value1', key2: 'value2' };
for (const key in myObject) {
  console.log(key, myObject[key]);
}

What if I want to use the keys of the Map in an array?

You can use the Array.from() method to convert the keys of a Map into an array:

const keysArray = Array.from(myMap.keys());
console.log(keysArray);