How does the map function work in JavaScript?

Can you explain how the map function works in JavaScript?

Sure! The map function creates a new array by applying a provided function to each element of the original array.

Can you give me an example of using map?

Of course! If you have an array of numbers, like [1, 2, 3], you can use map to double each number: const doubled = numbers.map(num => num * 2); This will give you [2, 4, 6].

What if I want to use map with objects?

You can use map with objects too! For example, if you have an array of objects and want to extract a specific property, you can do: const names = users.map(user => user.name);.

Are there any performance considerations when using map?

Yes, using map creates a new array, which can consume more memory. For large datasets, consider using forEach or a traditional for loop if performance is critical.